CVE-2022-28321

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory opensuse.org Vendor Advisory suse.com Vendor Advisory suse.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://download.opensuse.org/source/distribution/openSUSE-current/repo/oss/src/ patch vendor advisory
https://www.suse.com/security/cve/CVE-2022-28321.html vendor advisory
https://bugzilla.suse.com/show_bug.cgi?id=1197654 issue tracking patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-28321?
CVE-2022-28321 has been scored as a critical severity vulnerability.
How to fix CVE-2022-28321?
To fix CVE-2022-28321, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-28321 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-28321 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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