Paper/Archive/CVE-2022-28321

CVE-2022-28321

Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP — The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins.

EPSS 2%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 75.4.754 × 2015.1 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

SIPLUS S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refdownload.opensuse.org/source/distribution/openSUSE-current/repo/oss/src refsuse.com/security/cve/CVE-2022-28321.html refbugzilla.suse.com/show_bug.cgi?id=1197654 refcert-portal.siemens.com/productcert/html/ssa-398330.html