CVE-2021-28374 Information

Description

The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions allowing an attacker to read user information. This may include a cleartext password in some configurations. In general it includes the user’s existence uid and gids home and/or Maildir directory quota and some type of password information (such as a hash).

CVSS Vector

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

Reference

https://bugs.debian.org/984810 https://lists.debian.org/debian-lts-announce/2021/04/msg00011.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5