Improper authentication in OpenSSL - CVE-2024-12797
Published: February 11, 2025
Vulnerability identifier: #VU103771
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-12797
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL
OpenSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to an error when using RFC7250 Raw Public Keys (RPKs) to authenticate a server. TLS and DTLS connections using raw public keys are vulnerable to man-in-middle attacks when server authentication failure is not detected by clients.
Note, the vulnerability can be exploited only when TLS clients explicitly enable RPK use by the server, and the server, likewise, enables sending of an RPK instead of an X.509 certificate chain.
How to mitigate CVE-2024-12797
Install updates from vendor's website.
Sources
- https://github.com/openssl/openssl/commit/738d4f9fdeaad57660dcba50a619fafced3fd5e9
- https://github.com/openssl/openssl/commit/798779d43494549b611233f92652f0da5328fbe7
- https://github.com/openssl/openssl/commit/87ebd203feffcf92ad5889df92f90bb0ee10a699
- https://openssl-library.org/news/secadv/20250211.txt