PHP function password_verify can erroneously return true when argument contains NUL
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 1.5%
exploitation probability
1.5%top 29% of all CVEs
observed exploitation
nono source reports it
In PHP version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if a password stored with password_hash() starts with a null byte (\x00), testing a blank string as the password via password_verify() will incorrectly return true.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
PHP Group · PHPReferences
https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmrhttps://lists.debian.org/debian-lts-announce/2024/05/msg00005.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGWIK3HMBACERGB4TSBB2JUOMPYY2VKY/https://security.netapp.com/advisory/ntap-20240510-0010/http://www.openwall.com/lists/oss-security/2024/04/12/11