CVE-2021-41617

high

Description

sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.

References

https://www.starwindsoftware.com/security/sw-20220805-0001/

https://www.oracle.com/security-alerts/cpujul2022.html

https://www.oracle.com/security-alerts/cpuapr2022.html

https://www.openwall.com/lists/oss-security/2021/09/26/1

https://www.debian.org/security/2023/dsa-5586

https://security.netapp.com/advisory/ntap-20211014-0004/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W44V2PFQH5YLRN6ZJTVRKAD7CU6CYYET/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KVI7RWM2JLNMWTOFK6BDUSGNOIPZYPUT/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XJIONMHMKZDTMH6BQR5TNLF2WDCGWED/

https://bugzilla.suse.com/show_bug.cgi?id=1190975

https://www.theregister.com/2024/11/26/qnap_veritas_vulnerabilities/

https://www.tenable.com/blog/oracle-july-2022-critical-patch-update-addresses-188-cves

https://www.tenable.com/plugins/nessus/154174

https://www.openssh.com/txt/release-8.8

https://www.openssh.com/security.html

https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html

Details

Source: Mitre, NVD

Published: 2021-09-26

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 4.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00372