Vulnerability in Keyfactor Ejbca
CVE-2024-36066
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
References
- datatracker.ietf.org/doc/html/rfc4211 (Technical Description)
- support.keyfactor.com/hc/en-us/articles/26965687021595-EJBCA-Security-Advisory-… (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-36066?
- CVE-2024-36066 is a low-severity vulnerability in Keyfactor Ejbca. CVSS score: 3.1/10. Published 2024-09-12.
- How severe is CVE-2024-36066?
- Low severity. CVSS v3 base score is 3.1 out of 10.