Vulnerability in Reason-Jose Project
CVE-2023-23928
reason-jose is a JOSE implementation in ReasonML and OCaml.`Jose.Jws.validate` does not check HS256 signatures. This allows tampering of JWS header and payload data if the service does not perform additional checks. Such tampering could expose applications using reason-jose to authorization bypass. Applications relying on JWS claims assertion to enforce security boundaries may be vulnerable to privilege escalation. This issue has been patched in version 0.8.2.
EPSS: 0.005 (37.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.
Affected products
- Reason-jose_project Reason-jose
- Ulrikstrid Reason-jose — versions < 0.8.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2023-23928?
- CVE-2023-23928 is a medium-severity vulnerability in Reason-Jose Project, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.9/10. Published 2023-02-01.
- How severe is CVE-2023-23928?
- Medium severity. CVSS v3 base score is 5.9 out of 10.