CVE-2024-23771

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-22 · updated 2026-06-17
Weakness: CWE-203

Description

darkhttpd before 1.15 uses strcmp (which is not constant time) to verify authentication, which makes it easier for remote attackers to bypass authentication via a timing side channel.

Affected products

darkhttpd: before 1.15 — fixed in 1.15

How to fix

Upgrade to a fixed version: darkhttpd 1.15. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2024/01/25/1
https://github.com/emikulic/darkhttpd/commit/f477619d49f3c4de9ad59bd194265a48ddc03f04
https://github.com/emikulic/darkhttpd/compare/v1.14...v1.15
http://www.openwall.com/lists/oss-security/2024/01/25/1
https://github.com/emikulic/darkhttpd/commit/f477619d49f3c4de9ad59bd194265a48ddc03f04
https://github.com/emikulic/darkhttpd/compare/v1.14...v1.15

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