#VU100775 Improper authentication in Cobbler - CVE-2024-47533

Vulnerability identifier: #VU100775

Vulnerability risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-47533

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cobbler
Server applications / Other server solutions

Vendor: Cobbler project

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the authentication process within the utils.get_shared_secret(), which always returns the "-1" value and as a result allows anyone to connect to the XML-RPC interface as user `''` password "-1". A remote attacker can bypass authentication process and perform arbitrary changes in the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cobbler: 3.0.0 - 3.3.6

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External links
https://github.com/cobbler/cobbler/security/advisories/GHSA-m26c-fcgh-cp6h
https://github.com/cobbler/cobbler/commit/32c5cada013dc8daa7320a8eda9932c2814742b0
https://github.com/cobbler/cobbler/commit/e19717623c10b29e7466ed4ab23515a94beb2dda

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.