Headline
CVE-2022-20722: Cisco Security Advisory: Cisco IOx Application Hosting Environment Vulnerabilities
Multiple vulnerabilities in the Cisco IOx application hosting environment on multiple Cisco platforms could allow an attacker to inject arbitrary commands into the underlying host operating system, execute arbitrary code on the underlying host operating system, install applications without being authenticated, or conduct a cross-site scripting (XSS) attack against a user of the affected software. For more information about these vulnerabilities, see the Details section of this advisory.
The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.
Details about the vulnerabilities are as follows:
CVE-2022-20718: Cisco IOx Application Hosting Environment Parameter Injection Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to execute a parameter injection using the Cisco IOx API.
This vulnerability is due to incomplete sanitization of parameters that are passed in for activation of an application. An attacker could exploit this vulnerability by deploying and activating an application in the Cisco IOx application hosting environment with a crafted activation payload file. A successful exploit could allow the attacker to execute arbitrary code as root on the underlying host operating system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy35913
CVE ID: CVE-2022-20718
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20719: Cisco IOx Application Hosting Environment Parameter Injection Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to execute a parameter injection using the Cisco IOx API.
This vulnerability is due to incomplete sanitization of parameters that are passed in as part of the IOx package descriptor. An attacker could exploit this vulnerability by crafting an IOx package descriptor file and then building and deploying an application in the Cisco IOx application hosting environment. A successful exploit could allow the attacker to execute arbitrary code as root on the underlying host operating system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86583
CVE ID: CVE-2022-20719
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20720: Cisco IOx Application Hosting Environment Path Traversal Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to read or write arbitrary data on the underlying host operating system.
This vulnerability exists because a real path check is not performed on the requested data. An attacker could exploit this vulnerability by creating a symbolic link within the deployed application and requesting data using the API. A successful exploit could allow the attacker to read or execute arbitrary code as root on the underlying host operating system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy30957
CVE ID: CVE-2022-20720
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20723: Cisco IOx Application Hosting Environment Arbitrary Code Execution Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to execute arbitrary code on the underlying host operating system.
This vulnerability is due to incomplete sanitization of parameters that are passed in for activation of an application. An attacker could exploit this vulnerability by deploying and activating an application in the Cisco IOx application hosting environment with a crafted activation payload file. A successful exploit could allow the attacker to execute arbitrary code as root on the underlying host operating system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86603
CVE ID: CVE-2022-20723
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20725: Cisco IOx Application Hosting Environment Cross-Site Scripting Vulnerability
A vulnerability in the web-based Local Manager interface of the Cisco IOx application hosting environment could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based Local Manager interface of an affected device. The attacker must have valid Local Manager credentials.
This vulnerability is due to insufficient validation of user-supplied input by the web-based Local Manager interface. An attacker could exploit this vulnerability by injecting malicious code into a system settings tab. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86608
CVE ID: CVE-2022-20725
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:NCVE-2022-20724: Cisco IOx Application Hosting Environment User Impersonation Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an unauthenticated, remote attacker to bypass authentication and impersonate another authenticated user session.
This vulnerability is due to a race condition for allocation of the token. An attacker could exploit this vulnerability by constantly trying a call to the upload API, and if the calls occur at the same time as an authorized administrator deploying an application, the attacker may race the token and be given the ability to bypass authentication. A successful exploit could allow the attacker to bypass authentication.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86604
CVE ID: CVE-2022-20724
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.3
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:NCVE-2022-20726: Cisco IOx Application Hosting Environment Denial of Service Vulnerability
A vulnerability in the Cisco IOx application hosting environment of Cisco 809 Industrial Integrated Services Routers (Industrial ISRs), Cisco 829 Industrial ISRs, Cisco CGR 1000 Compute Modules, and Cisco IC3000 Industrial Compute Gateways could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to insufficient error handling of socket operations. An attacker could exploit this vulnerability by sending a sustained rate of crated TCP traffic to the IOx web server on an affected device. A successful exploit could allow the attacker to cause the IOx web server to stop processing requests, resulting in a DoS condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvx27640
CVE ID: CVE-2022-20726
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2022-20677: Cisco IOS XE Software Privilege Escalation Vulnerability
A vulnerability in the Cisco IOx application hosting environment in Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges from privilege level 15 to root on an affected device.
This vulnerability is due to incomplete file protection for the Cisco IOx application hosting environment. An attacker could exploit this vulnerability by modifying the file system with a crafted payload. A successful exploit could allow the attacker to execute arbitrary commands as root.
Bug ID(s): CSCvy30903 CSCvy16608
CVE ID: CVE-2022-20677
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.1
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20727: Cisco IOx Application Hosting Environment Privilege Escalation
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, local attacker to gain escalated privileges.
This vulnerability is due to improper input validation when loading Cisco IOx applications. An attacker could exploit this vulnerability by modifying application content while a Cisco IOx application is loading. A successful exploit could allow the attacker to gain privileges equivalent to the root user.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy35914
CVE ID: CVE-2022-20727
Security Impact Rating (SIR): Medium
CVSS Base Score: 5.1
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:NCVE-2022-20721: Cisco IOx Application Hosting Environment Arbitrary File Read Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to read arbitrary files from the underlying operating system.
This vulnerability is due to insufficient path validation of command arguments within the Cisco IOx API. An attacker could exploit this vulnerability by sending a crafted command request using the API. A successful exploit could allow the attacker to read the contents of any file that is located on the host device filesystem.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86598
CVE ID: CVE-2022-20721
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.9
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NCVE-2022-20722: Cisco IOx Application Hosting Environment Path Traversal Vulnerability
A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to read arbitrary files from the underlying host filesystem.
This vulnerability is due to insufficient path validation of command arguments within the Cisco IOx API. An attacker could exploit this vulnerability by sending a crafted command request using the API. A successful exploit could allow the attacker to read the contents of any file that is located on the underlying host filesystem.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCvy86602
CVE ID: CVE-2022-20722
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.9
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Fixed Releases
At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Cisco Platform
First Fixed Release
800 Series Industrial ISRs
Cisco IOS Software Release 15.9(3)M5 and later.
800 Series ISRs
Not fixed; IOx has reached end of life on Cisco 800 Series ISRs.
CGR1000 Compute Modules
IOx image for CGR1000 Compute Module 1.15.0.1
IC3000 Industrial Compute Gateways
Industrial Compute Gateway Software Release 1.4.1
IE 4000 Series Switches
Not fixed; IOx has reached end of life on the Cisco IE 4000 Series Switches.
IOS XE devices:
- 1000 Series ISRs
- 4000 Series ISRs
- ASR 1000 Series Aggregation Services Routers
- Catalyst 9x00 Series Switches
- Catalyst IE3400 Rugged Series Switches
- Embedded Services 3300 Series Switches
Cisco IOS XE Software releases:
- 16.12(7) (All but CSCvy16608 are resolved in 16.12(6))
- 17.3(5)
- 17.6(2)
- 17.7(1) and later
For more information, see the Cisco IOS and IOS XE Software Checker section below.
IR510 WPAN Industrial Routers
TBD. Fix planned for the next IR510 operating system release.
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.
Cisco IOS and IOS XE Software
To help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker to identify any Cisco Security Advisories that impact a specific software release and the earliest release that fixes the vulnerabilities described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (“Combined First Fixed”).
Customers can use the Cisco Software Checker to search advisories in the following ways:
- Choose the software and one or more releases
- Upload a .txt file that includes a list of specific releases
- Enter the output of the show version command
After initiating a search, customers can customize the search to include all Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication.
Customers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by entering a Cisco IOS or IOS XE Software release-for example, 15.1(4)M2 or 3.13.8S:
By default, the Cisco Software Checker includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker on Cisco.com and check the Medium check box in the drop-down list under Impact Rating when customizing a search.
Related news
A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.
A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.
Multiple vulnerabilities that affect Cisco Catalyst Digital Building Series Switches and Cisco Catalyst Micro Switches could allow an attacker to execute persistent code at boot time or to permanently prevent the device from booting, resulting in a permanent denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.
A vulnerability in IP ingress packet processing of the Cisco Embedded Wireless Controller with Catalyst Access Points Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device may experience a performance degradation in traffic processing or high CPU usage prior to the unexpected reload. This vulnerability is due to improper rate limiting of IP packets to the management interface. An attacker could exploit this vulnerability by sending a steady stream of IP traffic at a high rate to the management interface of the affected device. A successful exploit could allow the attacker to cause the device to reload.
A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI API. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.
A vulnerability in the integrated wireless access point (AP) packet processing of the Cisco 1000 Series Connected Grid Router (CGR1K) could allow an unauthenticated, adjacent attacker to cause a denial of service condition on an affected device. This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the integrated AP to stop processing traffic, resulting in a DoS condition. It may be necessary to manually reload the CGR1K to restore AP operation.
A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.
A vulnerability in the Application Visibility and Control (AVC-FNF) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient packet verification for traffic inspected by the AVC feature. An attacker could exploit this vulnerability by sending crafted packets from the wired network to a wireless client, resulting in the crafted packets being processed by the wireless controller. A successful exploit could allow the attacker to cause a crash and reload of the affected device, resulting in a DoS condition.
A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition on the device. This vulnerability is due to a lack of input validation of the information used to generate an SNMP trap related to a wireless client connection event. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
A vulnerability in the NETCONF over SSH feature of Cisco IOS XE Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service condition (DoS) on an affected device. This vulnerability is due to insufficient resource management. An attacker could exploit this vulnerability by initiating a large number of NETCONF over SSH connections. A successful exploit could allow the attacker to exhaust resources, causing the device to reload and resulting in a DoS condition on an affected device.
A vulnerability in the implementation of the Resource Public Key Infrastructure (RPKI) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Border Gateway Protocol (BGP) process to crash, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of a specific RPKI to Router (RTR) Protocol packet header. An attacker could exploit this vulnerability by compromising the RPKI validator server and sending a specifically crafted RTR packet to an affected device. Alternatively, the attacker could use man-in-the-middle techniques to impersonate the RPKI validator server and send a crafted RTR response packet over the established RTR TCP connection to the affected device. A successful exploit could allow the attacker to cause a DoS condition because the BGP process could constantly restart and BGP routing could become unstable.
A vulnerability in the data plane microcode of Lightspeed-Plus line cards for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the line card to reset. This vulnerability is due to the incorrect handling of malformed packets that are received on the Lightspeed-Plus line cards. An attacker could exploit this vulnerability by sending a crafted IPv4 or IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the Lightspeed-Plus line card to reset, resulting in a denial of service (DoS) condition for any traffic that traverses that line card.
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain escalated privileges. This vulnerability is due to improper access control on files within the affected system. A local attacker could exploit this vulnerability by modifying certain files on the vulnerable device. If successful, the attacker could gain escalated privileges and take actions on the system with the privileges of the root user.
A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to bypass authentication controls and log in to the device through the management interface This vulnerability is due to the improper implementation of the password validation algorithm. An attacker could exploit this vulnerability by logging in to an affected device with crafted credentials. A successful exploit could allow the attacker to bypass authentication and log in to the device as an administrator. The attacker could obtain privileges that are the same level as an administrative user but it depends on the crafted credentials. Note: This vulnerability exists because of a non-default device configuration that must be present for it to be exploitable. For details about the vulnerable configuration, see the Vulnerable Products section of this advisory.
A vulnerability in the CLI of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected system as a low-privileged user to exploit this vulnerability. This vulnerability exists because a file leveraged by a root user is executed when a low-privileged user runs specific commands on an affected system. An attacker could exploit this vulnerability by injecting arbitrary commands to a specific file as a lower-privileged user and then waiting until an admin user executes specific commands. The commands would then be executed on the device by the root user. A successful exploit could allow the attacker to escalate their privileges on the affected system from a low-privileged user to the root user.
A vulnerability in the History API of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain access to sensitive information on an affected system. This vulnerability is due to insufficient API authorization checking on the underlying operating system. An attacker could exploit this vulnerability by sending a crafted API request to Cisco vManage as a lower-privileged user and gaining access to sensitive information that they would not normally be authorized to access.
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the affected user. These actions could include modifying the system configuration and deleting accounts.