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CVE-2023-40012

MEDIUM

5.9

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published8/9/2023

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

trailofbits:uthenticode

Weaknesses (CWE)

CWE-325CWE-347

References

https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53(security-advisories@github.com)

https://github.com/trailofbits/uthenticode/pull/78(security-advisories@github.com)

https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj(security-advisories@github.com)

https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/trailofbits/uthenticode/pull/78(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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