CVE-2024-36066
Because the standalone CMP client originally was developed as test code, the salt was instead hardcoded and only 6 octets long.
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
Description
The CMP CLI client in KeyFactor EJBCA before 8.3.1 has only 6 octets of salt, and is thus not compliant with the security requirements of RFC 4211, and might make man-in-the-middle attacks easier. CMP includes password-based MAC as one of the options for message integrity and authentication (the other option is certificate-based). RFC 4211 section 4.4 requires that password-based MAC parameters use a salt with a random value of at least 8 octets. This helps to inhibit dictionary attacks. Because the standalone CMP client originally was developed as test code, the salt was instead hardcoded and only 6 octets long.
- CVSS 3.1
- 3.1 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.17% probability · 6th percentile
- CISA KEV
- Not listed
- Affected
- keyfactor/ejbca
- Source
- cve@mitre.org
References
- https://datatracker.ietf.org/doc/html/rfc4211#section-4.4Technical Description
- https://support.keyfactor.com/hc/en-us/articles/26965687021595-EJBCA-Security-Advisory-EJBCA-standalone-CMP-CLI-clientMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.