CVE-2022-24756
Bareos PAM Authentication Memory Leak
Description
Bareos is open source software for backup, archiving, and recovery of data for operating systems. When Bareos Director >= 18.2 but prior to 21.1.0, 20.0.6, and 19.2.12 is built and configured for PAM authentication, a failed PAM authentication will leak a small amount of memory. An attacker that is able to use the PAM Console (i.e. by knowing the shared secret or via the WebUI) can flood the Director with failing login attempts which will eventually lead to an out-of-memory condition in which the Director will not work anymore. Bareos Director versions 21.1.0, 20.0.6 and 19.2.12 contain a Bugfix for this problem. Users who are unable to upgrade may disable PAM authentication as a workaround.
INFO
Published Date :
March 15, 2022, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 6:51 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-24756.
| URL | Resource |
|---|---|
| https://github.com/bareos/bareos/pull/1115 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/pull/1119 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/pull/1121 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j | Third Party Advisory |
| https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/ | Exploit Patch Third Party Advisory |
| https://github.com/bareos/bareos/pull/1115 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/pull/1119 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/pull/1121 | Patch Third Party Advisory |
| https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j | Third Party Advisory |
| https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/ | Exploit Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-24756 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-24756 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/bareos/bareos/pull/1115 Added Reference https://github.com/bareos/bareos/pull/1119 Added Reference https://github.com/bareos/bareos/pull/1121 Added Reference https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j Added Reference https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 24, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/bareos/bareos/pull/1115 No Types Assigned https://github.com/bareos/bareos/pull/1115 Patch, Third Party Advisory Changed Reference Type https://github.com/bareos/bareos/pull/1119 No Types Assigned https://github.com/bareos/bareos/pull/1119 Patch, Third Party Advisory Changed Reference Type https://github.com/bareos/bareos/pull/1121 No Types Assigned https://github.com/bareos/bareos/pull/1121 Patch, Third Party Advisory Changed Reference Type https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j No Types Assigned https://github.com/bareos/bareos/security/advisories/GHSA-jh55-4wgw-xc9j Third Party Advisory Changed Reference Type https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/ No Types Assigned https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/ Exploit, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:* versions from (including) 18.2 up to (excluding) 19.2.12 *cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:* versions from (including) 20.0.0 up to (excluding) 20.0.6 *cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.1.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-24756 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-24756
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.46 }} 0.10%
score
0.75137
percentile