CVEvulnerability
CVE-2023-40012
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-08-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-325, CWE-347
Description
uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Versions of uthenticode prior to the 2.x series did not check Extended Key Usages in certificates, in violation of the Authenticode X.509 certificate profile. As a result, a malicious user could produce a "signed" PE file that uthenticode would verify and consider valid using an X.509 certificate that isn't entitled to produce code signatures (e.g., a SSL certificate). By design, uthenticode does not perform full-chain validation. However, the absence of EKU validation was an unintended oversight. The 2.0.0 release series includes EKU checks. There are no workarounds to this vulnerability.
Affected configurations
• trailofbits uthenticode (< 2.0.0)
Related
References
- https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53 Patch
- https://github.com/trailofbits/uthenticode/pull/78 Patch
- https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj Vendor Advisory
- https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53 Patch
- https://github.com/trailofbits/uthenticode/pull/78 Patch
- https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj Vendor Advisory