CVE-2017-18264

unknown
Published 2022-05-13 · Modified 2024-04-24
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
VIR risk

Description

An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.

Predictions

Exploit likelihood
30%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-18264

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed4:4.6.6-2
debian debianbullseyefixed4:4.6.6-2
debian debiansidfixed4:4.6.6-2
debian debiantrixiefixed4:4.6.6-2

Package impact

EcosystemPackageVulnerableFixed
php Packagistphpmyadmin/phpmyadmin>=4.0,<4.0.10.204.0.10.20
php Packagistphpmyadmin/phpmyadmin>=4.7.0-beta1,<4.7.04.7.0
php Packagistphpmyadmin/phpmyadmin>=4.4.0,<=4.4.15.10
php Packagistphpmyadmin/phpmyadmin>=4.6.0,<=4.6.6

References

Verify integrity in audit chain (admin only). AS-IS.