CVEvulnerability

CVE-2020-27780

9.8 CRITICAL Published 2020-12-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-287

Description

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

Affected configurations

• linux-pam linux-pam (>= 1.5.0 < 1.5.1)

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References