A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.

The remote Ubuntu 16.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7614-1 advisory.

    Cedric Buissart discovered that pcs did not correctly handle certain parameters. An attacker could     possibly use this issue to leak sensitive information or elevate their privileges. This issue only     affected Ubuntu 16.04 LTS. (CVE-2018-1086)

    Ondrej Mular discovered that pcs did not correctly handle Unix socket permissions. An attacker could     possibly use this issue to elevate their privileges. This issue only affected Ubuntu 22.04 LTS.
    (CVE-2022-2735)

    It was discovered that pcs did not correctly handle PAM authentication. An attacker could possibly use     this issue to bypass authentication mechanisms. This issue only affected Ubuntu 20.04 LTS and

    Ubuntu 22.04 LTS. (CVE-2022-1049)

    It was discovered that pcs did not correctly handle the validation of Node names. An attacker could     possibly use this issue to execute a cross-site scripting (XSS) attack. This issue only affected Ubuntu     16.04 LTS. (CVE-2017-2661)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0132 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2022-1049:
    A flaw was found in the Pacemaker configuration tool (pcs). The pcs daemon was allowing expired accounts,     and accounts with expired passwords to login when using PAM authentication. Therefore, unprivileged     expired accounts that have been denied access could still login.

    CVE-2022-2735:
    A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix     socket used for internal communication between PCS daemons. A privilege escalation could happen by     obtaining an authentication token for a hacluster user. With the hacluster token, this flaw allows an     attacker to have complete control over the cluster managed by PCS.

    CVE-2023-27530:
    A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart     MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart     parsing to take longer than expected.

    CVE-2023-27539:
    A denial of service vulnerability was found in rubygem-rack in how it parses headers. A carefully crafted     input can cause header parsing to take an unexpected amount of time, possibly resulting in a denial of     service.

    CVE-2024-25126:
    Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Racks     media type parser to take much longer than expected, leading to a possible denial of service vulnerability     (ReDos 2nd degree polynomial). This vulnerability is patched in 3.0.9.1 and 2.2.8.1.

    CVE-2024-26141:
    Rack is a modular Ruby web server interface. Carefully crafted Range headers can cause a server to respond     with an unexpectedly large response. Responding with such large responses could lead to a denial of     service issue. Vulnerable applications will use the `Rack::File` middleware or the     `Rack::Utils.byte_ranges` methods (this includes Rails applications). The vulnerability is fixed in     3.0.9.1 and 2.2.8.1.

    CVE-2024-26146:
    Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to     take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers     are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are     unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2022-23f40e879d advisory.

    Automatic update for pcs-0.11.3-4.fc38.

    ##### **Changelog**

    ```
    * Wed Sep  7 2022 Miroslav Lisik <mlisik@redhat.com> - 0.11.3-4
    - Fixed ruby socket permissions
    - Resolves: rhbz#2123389

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2022:6313 advisory.

  - A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix     socket used for internal communication between PCS daemons. A privilege escalation could happen by     obtaining an authentication token for a hacluster user. With the hacluster token, this flaw allows an     attacker to have complete control over the cluster managed by PCS. (CVE-2022-2735)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2022:6313 advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2022:6314 advisory.

  - A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix     socket used for internal communication between PCS daemons. A privilege escalation could happen by     obtaining an authentication token for a hacluster user. With the hacluster token, this flaw allows an     attacker to have complete control over the cluster managed by PCS. (CVE-2022-2735)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5226 advisory.

  - A flaw was found in the Pacemaker configuration tool (pcs). The pcs daemon was allowing expired accounts,     and accounts with expired passwords to login when using PAM authentication. Therefore, unprivileged     expired accounts that have been denied access could still login. (CVE-2022-1049)

  - A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix     socket used for internal communication between PCS daemons. A privilege escalation could happen by     obtaining an authentication token for a hacluster user. With the hacluster token, this flaw allows an     attacker to have complete control over the cluster managed by PCS. (CVE-2022-2735)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:6341 advisory.

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

    Security Fix(es):

    * pcs: obtaining an authentication token for hacluster user could lead to privilege escalation     (CVE-2022-2735)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2022:6314 advisory.

  - pcs: obtaining an authentication token for hacluster user could lead to privilege escalation     (CVE-2022-2735)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2022-9754 advisory.

    [0.10.12-6.0.1.el8_6.2]
    - Replace HAM-logo.png with a generic one

    [0.10.12-6.el8_6.2]
    - Fixed ruby socket permissions
    - Resolves: rhbz#2116837

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:6314 advisory.

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

    Security Fix(es):

    * pcs: obtaining an authentication token for hacluster user could lead to privilege escalation     (CVE-2022-2735)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:6312 advisory.

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

    Security Fix(es):

    * pcs: obtaining an authentication token for hacluster user could lead to privilege escalation     (CVE-2022-2735)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:6313 advisory.

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

    Security Fix(es):

    * pcs: obtaining an authentication token for hacluster user could lead to privilege escalation     (CVE-2022-2735)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2022-9753 advisory.

    [0.11.1-10.el9_0.2]
    - Fixed ruby socket permissions
    - Resolves: rhbz#2116839

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
241351	Ubuntu 16.04 LTS / 20.04 LTS / 22.04 LTS : pcs vulnerabilities (USN-7614-1)	Nessus	Ubuntu Local Security Checks	high
236048	Alibaba Cloud Linux 3 : 0132: pcs (ALINUX3-SA-2024:0132)	Nessus	Alibaba Cloud Linux Local Security Checks	high
211170	Fedora 38 : pcs (2022-23f40e879d)	Nessus	Fedora Local Security Checks	high
184990	Rocky Linux 9 : pcs (RLSA-2022:6313)	Nessus	Rocky Linux Local Security Checks	high
167689	AlmaLinux 9 : pcs (ALSA-2022:6313)	Nessus	Alma Linux Local Security Checks	high
165808	AlmaLinux 8 : pcs (ALSA-2022:6314)	Nessus	Alma Linux Local Security Checks	high
164812	Debian DSA-5226-1 : pcs - security update	Nessus	Debian Local Security Checks	high
164679	RHEL 8 : pcs (RHSA-2022:6341)	Nessus	Red Hat Local Security Checks	high
164650	Rocky Linux 8 : pcs (RLSA-2022:6314)	Nessus	Rocky Linux Local Security Checks	high
164629	Oracle Linux 8 : pcs (ELSA-2022-9754)	Nessus	Oracle Linux Local Security Checks	high
164626	RHEL 8 : pcs (RHSA-2022:6314)	Nessus	Red Hat Local Security Checks	high
164620	RHEL 8 : pcs (RHSA-2022:6312)	Nessus	Red Hat Local Security Checks	high
164618	RHEL 9 : pcs (RHSA-2022:6313)	Nessus	Red Hat Local Security Checks	high
164589	Oracle Linux 9 : pcs (ELSA-2022-9753)	Nessus	Oracle Linux Local Security Checks	high

Detections

Analytics

CVE-2022-2735

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

high

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high