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Test ID:1.3.6.1.4.1.25623.1.0.117696
Category:Privilege escalation
Title:OpenSSH 6.2 <= 8.7 Privilege Escalation Vulnerability
Summary:OpenSSH is prone to a privilege scalation vulnerability in; certain configurations.
Description:Summary:
OpenSSH is prone to a privilege scalation vulnerability in
certain configurations.

Vulnerability Insight:
sshd failed to correctly initialise supplemental groups when
executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand, where a
AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser directive has been set to run the
command as a different user. Instead these commands would inherit the groups that sshd was started
with.

Depending on system configuration, inherited groups may allow
AuthorizedKeysCommand/AuthorizedPrincipalsCommand helper programs to gain unintended privilege.

Neither AuthorizedKeysCommand nor AuthorizedPrincipalsCommand are enabled by default in
sshd_config.

Affected Software/OS:
OpenSSH versions 6.2 through 8.7.

Solution:
Update to version 8.8 or later.

CVSS Score:
4.4

CVSS Vector:
AV:L/AC:M/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-41617
https://bugzilla.suse.com/show_bug.cgi?id=1190975
https://security.netapp.com/advisory/ntap-20211014-0004/
Debian Security Information: DSA-5586 (Google Search)
https://www.debian.org/security/2023/dsa-5586
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XJIONMHMKZDTMH6BQR5TNLF2WDCGWED/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W44V2PFQH5YLRN6ZJTVRKAD7CU6CYYET/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KVI7RWM2JLNMWTOFK6BDUSGNOIPZYPUT/
https://www.starwindsoftware.com/security/sw-20220805-0001/
https://www.tenable.com/plugins/nessus/154174
https://www.openssh.com/security.html
https://www.openssh.com/txt/release-8.8
https://www.openwall.com/lists/oss-security/2021/09/26/1
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujul2022.html
https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html
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