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Fencer Intel
high 7.5

CVE-2020-13881 json

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 us…

published 6y ago modified 4mo ago also EUVD-2020-6089

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

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.

Patch / fix

  • arista cloudvision_portal 2020.1.2
  • libpam-tacplus Ubuntu 16.04 LTS 1.3.8-2+deb8u1build0.16.04.1
  • libpam-tacplus Ubuntu 18.04 LTS 1.3.8-2+deb8u1build0.18.04.1
  • libpam-tacplus Ubuntu 20.04 LTS 1.3.8-2+deb8u1build0.20.04.1

ubuntu advisories UBUNTU-CVE-2020-13881

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Exploit prediction

1.72% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-532 Insertion of Sensitive Information into Log File

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.