CVE-2022-28321
9.8 · CRITICALOverview
CVE-2022-28321 is a critical-severity vulnerability affecting linux-pam linux-pam. It was published on September 19, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from linux-pam. Update linux-pam to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux-pam | linux-pam | >= 0, < 1.5.2-6.1 | Affected |
References
Frequently Asked Questions
What is CVE-2022-28321?
CVE-2022-28321 is a critical-severity vulnerability affecting linux-pam linux-pam. It was published on September 19, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2022-28321?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-28321?
Check the references section for vendor advisories and patches from linux-pam. Update linux-pam to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-28321?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-28321 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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