CVE-2020-27743

Published: Oct 26, 2020Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Pam Tacplus Project: Pam Tacplus

Pam Tacplus Project

1 product

Pam Tacplus

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Pam Tacplus Project Pam Tacplus	Up to 1.5.1

Related CWEs

CWE-330

Use of Insufficiently Random Values

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

References (4)

https://github.com/kravietz/pam_tacplus/pull/163

Source: cve@mitre.org

Third Party Advisory

https://tools.ietf.org/html/rfc8907

Source: cve@mitre.org

Technical DescriptionThird Party Advisory

https://github.com/kravietz/pam_tacplus/pull/163

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://tools.ietf.org/html/rfc8907

Source: af854a3a-2127-422b-91ae-364da2661108

Technical DescriptionThird Party Advisory

Timeline

No history available yet.