CVE-2022-24755
CVE-2022-24755 is a high-severity vulnerability in Bareos with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-863
- Affected product: Bareos
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-24755?
- 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.
- How severe is CVE-2022-24755?
- CVE-2022-24755 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-24755 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-24755?
- CVE-2022-24755 affects Bareos. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-24755?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-24755 published?
- CVE-2022-24755 was published on 2022-03-15 and last updated on 2026-06-17.
References
- https://github.com/bareos/bareos/pull/1115
- https://github.com/bareos/bareos/pull/1119
- https://github.com/bareos/bareos/pull/1121
- https://github.com/bareos/bareos/security/advisories/GHSA-4979-8ffj-4q26
- https://huntr.dev/bounties/480121f2-bc3c-427e-986e-5acffb1606c5/
Affected products (1)
- cpe:2.3:a:bareos:bareos:*:*:*:*:*:*:*:*
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