Vulnerability Details : CVE-2022-24755
Potential exploit
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.
Products affected by CVE-2022-24755
- cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:*
- cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:*
- cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-24755
0.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 55 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-24755
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2022-24755
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-24755
-
https://github.com/bareos/bareos/pull/1119
Add PAM authorization by arogge · Pull Request #1119 · bareos/bareos · GitHubPatch;Third Party Advisory
-
https://github.com/bareos/bareos/security/advisories/GHSA-4979-8ffj-4q26
Bareos Director does not check authorization when authenticating via PAM · Advisory · bareos/bareos · GitHubThird Party Advisory
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https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/
Improper Authorization and possible DoS when using PAM Auth vulnerability found in bareosExploit;Patch;Third Party Advisory
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https://github.com/bareos/bareos/pull/1121
Add PAM authorization by arogge · Pull Request #1121 · bareos/bareos · GitHubPatch;Third Party Advisory
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https://github.com/bareos/bareos/pull/1115
dird: Add PAM authorization by arogge · Pull Request #1115 · bareos/bareos · GitHubPatch;Third Party Advisory
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