CVE-2020-27743
CRITICALpam_tacplus < 1.5.1 - Use of Insufficiently Random Values in libtac Session ID
Title source: llmDescription
libtac in pam_tacplus through 1.5.1 lacks a check for a failure of RAND_bytes()/RAND_pseudo_bytes(). This could lead to use of a non-random/predictable session_id.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_misc
https://github.com/kravietz/pam_tacplus/pull/163
Technical Description, Third Party Advisory x_refsource_misc
https://tools.ietf.org/html/rfc8907
Scores
CVSS v3
9.8
EPSS
0.0171
EPSS Percentile
74.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-330
Status
published
Products (1)
pam_tacplus_project/pam_tacplus
< 1.5.1
Published
Oct 26, 2020
Tracked Since
Feb 18, 2026