Vulnerability Details : 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.
Vulnerability category: Gain privilege
Products affected by CVE-2023-23928
- cpe:2.3:a:reason-jose_project:reason-jose:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-23928
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-23928
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N |
1.6
|
4.2
|
GitHub, Inc. |
CWE ids for CVE-2023-23928
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by: security-advisories@github.com (Primary)
References for CVE-2023-23928
-
https://github.com/ulrikstrid/reason-jose/commit/36cd724db3cbec121757624da49072386bd869e5
Merge pull request from GHSA-7jj9-6qwv-wpm7 · ulrikstrid/reason-jose@36cd724 · GitHubPatch;Third Party Advisory
-
https://github.com/ulrikstrid/reason-jose/releases/tag/v0.8.2
Release 0.8.2 · ulrikstrid/reason-jose · GitHubRelease Notes;Third Party Advisory
-
https://github.com/ulrikstrid/reason-jose/security/advisories/GHSA-7jj9-6qwv-wpm7
Jws ignores signature checks · Advisory · ulrikstrid/reason-jose · GitHubThird Party Advisory
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