CVE-2022-24755 Information

Description

Bareos is open source software for backup archiving and recovery of data for operating systems. When Bareos Director >= 18.2 >= 18.2 but prior to 21.1.0 20.0.6 and 19.2.12 is built and configured for PAM authentication it will skip authorization checks completely. Expired accounts and accounts with expired passwords can still login. This problem will affect users that have PAM enabled. Currently there is no authorization (e.g. check for expired or disabled accounts) but only plain authentication (i.e. check if username and password match). Bareos Director versions 21.1.0 20.0.6 and 19.2.12 implement the authorization check that was previously missing. The only workaround is to make sure that authentication fails if the user is not authorized.

CVSS Vector

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

Reference

https://github.com/bareos/bareos/pull/1121 https://github.com/bareos/bareos/pull/1119 https://github.com/bareos/bareos/pull/1115 https://github.com/bareos/bareos/security/advisories/GHSA-4979-8ffj-4q26 https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8