PT-2026-47839 · Openssl+4 · Openssl+4
CVSS v3.1
5.3
Medium
| Vector | AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
OpenSSL (affected versions not specified)
Description
An error in the callback used to verify certificates during a Root CA key update in the Certificate Management Protocol (CMP) renders certificate validation ineffectual. Specifically, a typo in the certificate chain building code within the
OSSL CMP get1 rootCaKeyUpdate() function causes an incorrect certificate (newWithOld instead of oldRoot) to be added to the chain. This allows an attacker with valid Registration Authority (RA) level credentials to bypass signature verification and replace the root CA certificate for CMP clients with an arbitrary self-signed certificate, effectively escalating credentials to the root Certification Authority level.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Certificate Validation
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Weakness Enumeration
Related Identifiers
Affected Products
Freebsd
Linuxmint
Openssl
Rocky Linux
Ubuntu