Red Hat Security Advisory 2024-1846-03 - An update for pcs is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include a denial of service vulnerability.

    The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1846.jsonRed Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis:           Moderate: pcs security updateAdvisory ID:        RHSA-2024:1846-03Product:            Red Hat Enterprise LinuxAdvisory URL:       https://access.redhat.com/errata/RHSA-2024:1846Issue date:         2024-04-16Revision:           03CVE Names:          CVE-2024-25126====================================================================Summary: An update for pcs is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.Security Fix(es):* rubygem-rack: Denial of Service Vulnerability in Rack Content-Type Parsing (CVE-2024-25126)* rubygem-rack: Possible DoS Vulnerability with Range Header in Rack (CVE-2024-26141)* rubygem-rack: Possible Denial of Service Vulnerability in Rack Header Parsing (CVE-2024-26146)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2024-25126References:https://access.redhat.com/security/updates/classification/#moderatehttps://bugzilla.redhat.com/show_bug.cgi?id=2265593https://bugzilla.redhat.com/show_bug.cgi?id=2265594https://bugzilla.redhat.com/show_bug.cgi?id=2265595

Red Hat Security Advisory 2024-1846-03

Red Hat Security Advisory 2024-1841-03 - An update for pcs is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include a denial of service vulnerability.

The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1841.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff

====================================================================  
Red Hat Security Advisory

Synopsis:           Moderate: pcs security update  
Advisory ID:        RHSA-2024:1841-03  
Product:            Red Hat Enterprise Linux  
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1841  
Issue date:         2024-04-16  
Revision:           03  
CVE Names:          CVE-2024-25126  
====================================================================

Summary: 

An update for pcs is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description:

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

Security Fix(es):

* rubygem-rack: Denial of Service Vulnerability in Rack Content-Type Parsing (CVE-2024-25126)

* rubygem-rack: Possible DoS Vulnerability with Range Header in Rack (CVE-2024-26141)

* rubygem-rack: Possible Denial of Service Vulnerability in Rack Header Parsing (CVE-2024-26146)

Solution:

https://access.redhat.com/articles/11258

CVEs:

CVE-2024-25126

References:

https://access.redhat.com/security/updates/classification/#moderate  
https://bugzilla.redhat.com/show_bug.cgi?id=2265593  
https://bugzilla.redhat.com/show_bug.cgi?id=2265594  
https://bugzilla.redhat.com/show_bug.cgi?id=2265595

Red Hat Security Advisory 2024-1841-03

Red Hat Security Advisory 2024-1840-03 - An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

    The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1840.jsonRed Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis:           Moderate: kernel-rt security updateAdvisory ID:        RHSA-2024:1840-03Product:            Red Hat Enterprise LinuxAdvisory URL:       https://access.redhat.com/errata/RHSA-2024:1840Issue date:         2024-04-16Revision:           03CVE Names:          CVE-2021-33631====================================================================Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es):* kernel: ext4: kernel bug in ext4_write_inline_data_end() (CVE-2021-33631)* kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2021-33631References:https://access.redhat.com/security/updates/classification/#moderatehttps://bugzilla.redhat.com/show_bug.cgi?id=2252731https://bugzilla.redhat.com/show_bug.cgi?id=2261976

Red Hat Security Advisory 2024-1840-03

Red Hat Security Advisory 2024-1836-03 - An update for kernel is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1836.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff

====================================================================  
Red Hat Security Advisory

Synopsis:           Moderate: kernel security, bug fix, and enhancement update  
Advisory ID:        RHSA-2024:1836-03  
Product:            Red Hat Enterprise Linux  
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1836  
Issue date:         2024-04-16  
Revision:           03  
CVE Names:          CVE-2021-33631  
====================================================================

Summary: 

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931)

* kernel: ext4: kernel bug in ext4_write_inline_data_end() (CVE-2021-33631)

Bug Fix(es):

* Performance drop on Broadcom bnxt_en nic after OCP upgrade from OCP 4.12 to OCP 4.13 (4.18.0-372.32.1.el8_6.x86_64 to 5.14.0-284.32.1.el9_2.x86_64) (JIRA:RHEL-15379)

* High latency with Matrox mgag200 (JIRA:RHEL-16558)

* [regression][ext4][xfstests generic/094] Error reading from file with invalid argument (JIRA:RHEL-25435)

* kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (JIRA:RHEL-21646)

* xfs_growfs: XFS_IOC_FSGROWFSDATA xfsctl failed: No space left on device (RHEL9) (JIRA:RHEL-28688)

* Memory corruption when using dm-crypt or dm-verity on RHEL-9 (JIRA:RHEL-26094)

* kernel: ext4: kernel bug in ext4_write_inline_data_end() (JIRA:RHEL-26335)

Enhancement(s):

* [IBM 9.4 FEAT] Upgrade the qeth driver to latest from upstream, e.g. kernel 6.4 (JIRA:RHEL-25812)

Solution:

https://access.redhat.com/articles/11258

CVEs:

CVE-2021-33631

References:

https://access.redhat.com/security/updates/classification/#moderate  
https://bugzilla.redhat.com/show_bug.cgi?id=2252731  
https://bugzilla.redhat.com/show_bug.cgi?id=2261976

Red Hat Security Advisory 2024-1836-03

Red Hat Security Advisory 2024-1835-03 - An update for shim is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include buffer overflow, bypass, integer overflow, and out of bounds read vulnerabilities.

The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1835.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff

====================================================================  
Red Hat Security Advisory

Synopsis:           Important: shim security update  
Advisory ID:        RHSA-2024:1835-03  
Product:            Red Hat Enterprise Linux  
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1835  
Issue date:         2024-04-16  
Revision:           03  
CVE Names:          CVE-2023-40546  
====================================================================

Summary: 

An update for shim is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description:

The shim package contains a first stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.

Security Fix(es):

* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)

* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)

* shim: Out-of-bounds read printing error messages (CVE-2023-40546)

* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)

* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)

* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution:

https://access.redhat.com/articles/11258

CVEs:

CVE-2023-40546

References:

https://access.redhat.com/security/updates/classification/#important  
https://bugzilla.redhat.com/show_bug.cgi?id=2234589  
https://bugzilla.redhat.com/show_bug.cgi?id=2241782  
https://bugzilla.redhat.com/show_bug.cgi?id=2241796  
https://bugzilla.redhat.com/show_bug.cgi?id=2241797  
https://bugzilla.redhat.com/show_bug.cgi?id=2259915  
https://bugzilla.redhat.com/show_bug.cgi?id=2259918

Red Hat Security Advisory 2024-1835-03

Red Hat Security Advisory 2024-1834-03 - An update for shim is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.2 Telecommunications Update Service. Issues addressed include buffer overflow, bypass, integer overflow, and out of bounds read vulnerabilities.

The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1834.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff

====================================================================  
Red Hat Security Advisory

Synopsis:           Important: shim security update  
Advisory ID:        RHSA-2024:1834-03  
Product:            Red Hat Enterprise Linux  
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1834  
Issue date:         2024-04-16  
Revision:           03  
CVE Names:          CVE-2023-40546  
====================================================================

Summary: 

An update for shim is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.2 Telecommunications Update Service.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description:

The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.

Security Fix(es):

* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)

* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)

* shim: Out-of-bounds read printing error messages (CVE-2023-40546)

* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)

* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)

* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution:

https://access.redhat.com/articles/11258

CVEs:

CVE-2023-40546

References:

https://access.redhat.com/security/updates/classification/#important  
https://bugzilla.redhat.com/show_bug.cgi?id=2234589  
https://bugzilla.redhat.com/show_bug.cgi?id=2241782  
https://bugzilla.redhat.com/show_bug.cgi?id=2241796  
https://bugzilla.redhat.com/show_bug.cgi?id=2241797  
https://bugzilla.redhat.com/show_bug.cgi?id=2259915  
https://bugzilla.redhat.com/show_bug.cgi?id=2259918

Red Hat Security Advisory 2024-1834-03

Red Hat Security Advisory 2024-1833-03 - An update for squid is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Issues addressed include a denial of service vulnerability.

    The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1833.jsonRed Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis:           Important: squid security updateAdvisory ID:        RHSA-2024:1833-03Product:            Red Hat Enterprise LinuxAdvisory URL:       https://access.redhat.com/errata/RHSA-2024:1833Issue date:         2024-04-16Revision:           03CVE Names:          CVE-2024-25111====================================================================Summary: An update for squid is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.Security Fix(es):* squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)* squid: denial of service in HTTP header parser (CVE-2024-25617)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2024-25111References:https://access.redhat.com/security/updates/classification/#importanthttps://bugzilla.redhat.com/show_bug.cgi?id=2264309https://bugzilla.redhat.com/show_bug.cgi?id=2268366

Red Hat Security Advisory 2024-1833-03

Red Hat Security Advisory 2024-1832-03 - An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include a denial of service vulnerability.

    The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1832.jsonRed Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis:           Important: squid:4 security updateAdvisory ID:        RHSA-2024:1832-03Product:            Red Hat Enterprise LinuxAdvisory URL:       https://access.redhat.com/errata/RHSA-2024:1832Issue date:         2024-04-16Revision:           03CVE Names:          CVE-2024-25111====================================================================Summary: An update for the squid:4 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:Squid is a high-performance proxy caching server for web clients, supportingFTP, and HTTP data objects.Security Fix(es):* squid: Denial of Service in HTTP Chunked Decoding (CVE-2024-25111)* squid: denial of service in HTTP header parser (CVE-2024-25617)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2024-25111References:https://access.redhat.com/security/updates/classification/#importanthttps://bugzilla.redhat.com/show_bug.cgi?id=2264309https://bugzilla.redhat.com/show_bug.cgi?id=2268366

Red Hat Security Advisory 2024-1832-03

Moobot, Miori, AGoent, and a Gafgyt variant have joined the infamous Mirai botnet in attacking unpatched versions of vulnerable Wi-Fi routers.

Source: Stuart Miles via Alamy Stock Photo

A number of botnets are pummeling a nearly year-old command-injection vulnerability in TP-Link routers to compromise the devices for IoT-driven distributed denial of service (DDoS) attacks.

There already is a patch for the flaw, tracked as CVE-2023-1389, found in the Web management interface of the TP-Link Archer AX21 (AX1800) Wi-Fi router and affecting devices Version 1.1.4 Build 20230219 or prior.

However, threat actors are taking advantage of unpatched devices to dispatch various botnets — include Moobot, Miori, AGoent, a Gafgyt variant, and variants of the infamous Mirai botnet — that can compromise the devices for DDoS and further nefarious activity, according to a blog post from Fortiguard Labs Threat Research.

"Recently, we observed multiple attacks focusing on this year-old vulnerability," which already was previously exploited by the in Mirai botnet, according to the post by Fortiguard researchers Cara Lin and Vincent Li. Fortiguard's IPS telemetry has detected significant traffic peaks, which alerted the researchers to the malicious activity, they said.

**Exploiting the TP-Link Flaw**

The flaw creates a scenario in which there is no sanitization of the "Country" field of the router's management interface, "so an attacker can exploit it for malicious activities and gain foothold," according to TP-Link's security advisory for the flaw.

"This is an unauthenticated command-injection vulnerability in the 'locale' API available via the web management interface," Lin and Li explained.

To exploit it, users can query the specified form "country" and conduct a "write" operation, which is handled by the "set\_country" function, the researchers explained. That function calls the "merge\_config\_by\_country" function and concatenates the argument of the specified form "country" into a command string. This string is then executed by the "popen" function.

"Since the 'country' field won't be emptied, the attacker can achieve command injection," the researchers wrote.

**Botnets to the Siege**

TP-Link's advisory when the flaw was revealed last year included acknowledgement of exploitation by the Mirai botnet. But since then other botnets as well as various Mirai variants also have taken siege against vulnerable devices.

One is Agoent, a Golang-based agent bot that attacks by first fetching the script file "exec.sh" from an attacker-controlled website, which then retrieves the Executable and Linkable Format (ELF) files of different Linux-based architectures.

The bot then executes two primary behaviors: the first is to create the host username and password using random characters, and the second is to establish connection with command and control (C2) to pass on the credentials just created by the malware for device takeover, the researchers said.

A botnet that creates denial of service (DoS) in Linux architectures called the Gafgyt variant also is attacking the TP-Link flaw by downloading and executing a script file and then retrieving Linux architecture execution files with the prefix filename "rebirth." The botnet then gets the compromised target IP and architecture information, which it concatenates into a string that is part of its initial connection message, the researchers explained.

"After establishing a connection with its C2 server, the malware receives a continuous 'PING' command from the server to ensure persistence on the compromised target," the researchers wrote. It then waits for various C2 commands to create DoS attacks.

The botnet called Moobot also is attacking the flaw to conduct DDoS attacks on remote IPs via a command from the attacker's C2 server, the researchers said. While the botnet targets various IoT hardware architectures, Fortiguard researchers analyzed the botnet's execution file designed for the "x86\_64" architecture to determine its exploitation activity, they said.

A variant of Mirai also is conducting DDoS attacks in its exploitation of the flaw by sending a packet from the C&C server to direct the endpoint to initiate the attack, the researchers noted.

"The command specified is 0x01 for a Valve Source Engine (VSE) flood, with a duration of 60 seconds (0x3C), targeting a randomly selected victim's IP address and the port number 30129," they explained.

Miori, another Mirai variant, also has joined the fray to conduct brute-force attacks on compromised devices, the researchers noted. And they also observed attacks by Condi that remains consistent with a version of the botnet that was active last year.

The attack retains the function to prevent reboots by deleting binaries responsible for shutting down or rebooting the system, and scans active processes and cross-references with predefined strings to terminate processes with matching names, the researchers said.

**Patch & Protect to Avoid DDoS**

Botnet attacks that exploit device flaws to target IoT environments are "relentless," and thus users should be vigilant against DDoS botnets," the researchers noted. Indeed, IoT adversaries are advancing their attacks by pouncing on unpatched device flaws to further their sophisticated attack agendas.

Attacks against TP-Link devices can be mitigated by applying the available patch for affected devices, and this practice should be followed for any other IoT devices "to safeguard their network environments from infection, preventing them from becoming bots for malicious threat actors," the researchers wrote.

Fortiguard also included in its post various indicators of compromise (IoCs) for the different botnet attacks, including C2 servers, URLs, and files that can help server administrators identify an attack.

**About the Author(s)**

Elizabeth Montalbano is a freelance writer, journalist, and therapeutic writing mentor with more than 25 years of professional experience. Her areas of expertise include technology, business, and culture. Elizabeth previously lived and worked as a full-time journalist in Phoenix, San Francisco, and New York City; she currently resides in a village on the southwest coast of Portugal. In her free time, she enjoys surfing, hiking with her dogs, traveling, playing music, yoga, and cooking.

Various Botnets Pummel Year-Old TP-Link Flaw in IoT Attacks

Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware.
The attacks leverage CVE-2023-22518 (CVSS score: 9.1), a critical security vulnerability impacting the Atlassian Confluence Data Center and Server that allows an unauthenticated attacker to reset Confluence and create an administrator account.
Armed with this access, a

Tag

#linux