CVE-2022-24755 Incorrect Authorization in Bareos Director

2022-03-1514:35:13

CWE-863

GitHub_M

www.cve.org

bareos director

incorrect authorization

pam authentication

expired accounts

authorization check

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.9

Confidence

High

EPSS

0.004

Percentile

72.4%

JSON

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.

CNA Affected

[
  {
    "product": "bareos",
    "vendor": "bareos",
    "versions": [
      {
        "status": "affected",
        "version": ">= 18.2, < 19.2.12"
      },
      {
        "status": "affected",
        "version": ">= 20.0.0, < 20.0.6"
      },
      {
        "status": "affected",
        "version": ">= 21.0.0, < 21.1.0"
      }
    ]
  }
]