CVE-2023-0567

password_verify() always returns true for some invalid hashes

CVSS 7.7 HIGHEPSS 0.9%CWE-916

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, password_verify() function may accept some invalid Blowfish hashes as valid. If such invalid hash ever ends up in the password database, it may lead to an application allowing any password for this entry as valid.

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

Affected products

PHP Group · PHP

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References

https://bugs.php.net/bug.php?id=81744 https://github.com/php/php-src/security/advisories/GHSA-7fj2-8x79-rjf4 https://security.netapp.com/advisory/ntap-20230331-0008/