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Vulnerability record · CVE-2020-13881 · published 6 June 2020

CVE-2020-13881: Pam tacplus project pam tacplus sensitive information in log file vulnerability

PPam Tacplus Project · Pam Tacplus

In support.c in pam_tacplus 1.3.8 through 1.5.1, the TACACS+ shared secret gets logged via syslog if the DEBUG loglevel and journald are used.

7.5 CVSS 3.1 High EPSS 1.7% · top 24.1% CWE-532 · Sensitive information in log file
7.5CVSS 3.1 base score, v2 4.3
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

In support.c in pam_tacplus 1.3.8 through 1.5.1, the TACACS+ shared secret gets logged via syslog if the DEBUG loglevel and journald are used.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2020/06/08/1 Mailing ListPatchThird Party Advisory
https://github.com/kravietz/pam_tacplus/commit/4a9852c31c2fd0c0e72fbb689a586aabcfb11cb0 PatchThird Party Advisory
https://github.com/kravietz/pam_tacplus/issues/149 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00007.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00006.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/4521-1/ Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/11705-security-advisory-50 Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/08/1 Mailing ListPatchThird Party Advisory
https://github.com/kravietz/pam_tacplus/commit/4a9852c31c2fd0c0e72fbb689a586aabcfb11cb0 PatchThird Party Advisory
https://github.com/kravietz/pam_tacplus/issues/149 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00007.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00006.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/4521-1/ Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/11705-security-advisory-50 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-13881), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.