CVE-2017-18264
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
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4:4.6.6-2 |
| sid | Fixed | 4:4.6.6-2 |
| bullseye | Fixed | 4:4.6.6-2 |
| bookworm | Fixed | 4:4.6.6-2 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | phpmyadmin/phpmyadmin | >=4.0,<4.0.10.20 | 4.0.10.20 |
| Packagist | phpmyadmin/phpmyadmin | >=4.7.0-beta1,<4.7.0 | 4.7.0 |
| Packagist | phpmyadmin/phpmyadmin | >=4.4.0,<=4.4.15.10 | |
| Packagist | phpmyadmin/phpmyadmin | >=4.6.0,<=4.6.6 | |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.