CVE-2022-28321 is a critical authentication bypass vulnerability affecting the Linux-PAM package in openSUSE Tumbleweed, specifically when using the pam_access.so module. An attacker can gain unauthorized SSH access to a machine if their IP address is not resolvable via DNS, even if they are explicitly denied access. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the high severity warrants immediate patching for affected openSUSE Tumbleweed systems.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.5.2-6.1CPE matchmatch criteria | cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.