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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (37.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Reason-Jose Project
- Ulrikstrid Reason-Jose — versions < 0.8.2
Weakness classification (CWE)
References
- github.com/ulrikstrid/reason-jose/security/advisories/GHSA-7jj9-6qwv-wpm7 (Third Party Advisory)
- github.com/ulrikstrid/reason-jose/commit/36cd724db3cbec121757624da49072386bd869… (Patch, Third Party Advisory)
- github.com/ulrikstrid/reason-jose/releases/tag/v0.8.2 (Third Party Advisory, 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.