In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination, allowing any user to inspect and manipulate any property. This leads to access-control bypass in some situations in which an unrelated D-Bus system service has a settable (writable) property

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2022:0203 advisory.

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

    CVE-2021-44225:
    In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property

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

An update of the keepalived package has been released.

The remote CentOS Linux 9 host has a package installed that is affected by a vulnerability as referenced in the keepalived-2.2.4-2.el9 build changelog.

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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

The remote NewStart CGSL host, running version MAIN 6.06, has keepalived packages installed that are affected by a vulnerability:

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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

The version of keepalived installed on the remote host is prior to 1.3.5-16. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2168 advisory.

    A flaw was found in keepalived, where an improper authentication vulnerability allows an unprivileged user     to change properties that could lead to an access-control bypass. (CVE-2021-44225)

Tenable has extracted the preceding description block directly from the tested product 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 Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3388 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3388-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Markus Koschany     April 10, 2023                                https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : keepalived     Version        : 1:2.0.10-1+deb10u1     CVE ID         : CVE-2021-44225

    A flaw was found in keepalived, a failover and monitoring daemon for LVS     clusters, where an improper authentication vulnerability allows an     unprivilegeduser to change properties that could lead to an access-control     bypass.

    For Debian 10 buster, this problem has been fixed in version     1:2.0.10-1+deb10u1.

    We recommend that you upgrade your keepalived packages.

    For the detailed security status of keepalived please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/keepalived

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: This is a digitally signed message part

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

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

According to the versions of the keepalived package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version MAIN 6.02, has keepalived packages installed that are affected by a vulnerability:

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2022-2022-038 advisory.

    A flaw was found in keepalived, where an improper authentication vulnerability allows an unprivileged user     to change properties that could lead to an access-control bypass. (CVE-2021-44225)

Tenable has extracted the preceding description block directly from the tested product 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 SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2022:3232-1 advisory.

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2022:2923-1 advisory.

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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

According to the versions of the keepalived package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2022:1930 advisory.

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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 a package installed that is affected by a vulnerability as referenced in the ALSA-2022:1930 advisory.

  - In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination,     allowing any user to inspect and manipulate any property. This leads to access-control bypass in some     situations in which an unrelated D-Bus system service has a settable (writable) property (CVE-2021-44225)

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 a package installed that is affected by a vulnerability as referenced in the RHSA-2022:1930 advisory.

    The keepalived utility provides simple and robust facilities for load balancing and high availability. The     load balancing framework relies on the well-known and widely used IP Virtual Server (IPVS) kernel module     providing layer-4 (transport layer) load balancing. Keepalived implements a set of checkers to dynamically     and adaptively maintain and manage a load balanced server pool according to the health of the servers.
    Keepalived also implements the Virtual Router Redundancy Protocol (VRRPv2) to achieve high availability     with director failover.

    Security Fix(es):

    * keepalived: dbus access control bypass (CVE-2021-44225)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes     linked from 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 CentOS Linux 8 host has a package installed that is affected by a vulnerability as referenced in the CESA-2022:1930 advisory.

  - keepalived: dbus access control bypass (CVE-2021-44225)

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

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5188-1 advisory.

    It was discovered that Keepalived incorrectly handled certain messages. An attacker could possibly use     this issue to access-control bypass.

Tenable has extracted the preceding description block directly from the Ubuntu 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
236326	Alibaba Cloud Linux 3 : 0203: keepalived (ALINUX3-SA-2022:0203)	Nessus	Alibaba Cloud Linux Local Security Checks	medium
203154	Photon OS 4.0: Keepalived PHSA-2023-4.0-0321	Nessus	PhotonOS Local Security Checks	medium
191363	CentOS 9 : keepalived-2.2.4-2.el9	Nessus	CentOS Local Security Checks	medium
187354	NewStart CGSL MAIN 6.06 : keepalived Vulnerability (NS-SA-2023-0097)	Nessus	NewStart CGSL Local Security Checks	medium
178836	Amazon Linux 2 : keepalived (ALAS-2023-2168)	Nessus	Amazon Linux Local Security Checks	medium
174041	Debian dla-3388 : keepalived - security update	Nessus	Debian Local Security Checks	medium
170828	EulerOS Virtualization 3.0.2.2 : keepalived (EulerOS-SA-2023-1261)	Nessus	Huawei Local Security Checks	medium
168932	NewStart CGSL MAIN 6.02 : keepalived Vulnerability (NS-SA-2022-0105)	Nessus	NewStart CGSL Local Security Checks	medium
165632	Amazon Linux 2022 : keepalived (ALAS2022-2022-038)	Nessus	Amazon Linux Local Security Checks	medium
164941	SUSE SLES15 Security Update : keepalived (SUSE-SU-2022:3232-1)	Nessus	SuSE Local Security Checks	medium
164465	SUSE SLES15 Security Update : keepalived (SUSE-SU-2022:2923-1)	Nessus	SuSE Local Security Checks	medium
161547	EulerOS 2.0 SP3 : keepalived (EulerOS-SA-2022-1734)	Nessus	Huawei Local Security Checks	medium
161346	Rocky Linux 8 : keepalived (RLSA-2022:1930)	Nessus	Rocky Linux Local Security Checks	medium
161145	AlmaLinux 8 : keepalived (ALSA-2022:1930)	Nessus	Alma Linux Local Security Checks	medium
160997	RHEL 8 : keepalived (RHSA-2022:1930)	Nessus	Red Hat Local Security Checks	medium
160918	CentOS 8 : keepalived (CESA-2022:1930)	Nessus	CentOS Local Security Checks	medium
160692	EulerOS Virtualization 3.0.2.0 : keepalived (EulerOS-SA-2022-1696)	Nessus	Huawei Local Security Checks	medium
160045	EulerOS 2.0 SP10 : keepalived (EulerOS-SA-2022-1465)	Nessus	Huawei Local Security Checks	medium
160041	EulerOS 2.0 SP10 : keepalived (EulerOS-SA-2022-1474)	Nessus	Huawei Local Security Checks	medium
159871	EulerOS Virtualization 2.10.1 : keepalived (EulerOS-SA-2022-1375)	Nessus	Huawei Local Security Checks	medium
159866	EulerOS Virtualization 2.10.0 : keepalived (EulerOS-SA-2022-1401)	Nessus	Huawei Local Security Checks	medium
159264	EulerOS 2.0 SP8 : keepalived (EulerOS-SA-2022-1351)	Nessus	Huawei Local Security Checks	medium
158542	EulerOS 2.0 SP9 : keepalived (EulerOS-SA-2022-1307)	Nessus	Huawei Local Security Checks	medium
158538	EulerOS 2.0 SP9 : keepalived (EulerOS-SA-2022-1291)	Nessus	Huawei Local Security Checks	medium
156591	Photon OS 3.0: Keepalived PHSA-2022-3.0-0348	Nessus	PhotonOS Local Security Checks	medium
156042	Ubuntu 18.04 LTS / 20.04 LTS : Keepalived vulnerability (USN-5188-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2021-44225

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium