Improper Authentication The advisory has been revoked - it doesn't affect any version of package pam (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2310-PAM-5977890
- published27 Sept 2022
- disclosed19 Sept 2022
Introduced: 19 Sep 2022
CVE-2022-28321 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:23.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pam package and not the pam package as distributed by Ubuntu.
The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2022-28321
- http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/
- https://bugzilla.suse.com/show_bug.cgi?id=1197654
- https://www.suse.com/security/cve/CVE-2022-28321.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html