CVE-2017-18264
Published: 1 May 2018
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
phpmyadmin Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4:4.6.6-5)
|
| bionic |
Not vulnerable
(4:4.6.6-5)
|
|
| cosmic |
Not vulnerable
(4:4.6.6-5)
|
|
| disco |
Not vulnerable
(4:4.6.6-5)
|
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(4:4.6.6-5)
|
|
| groovy |
Not vulnerable
(4:4.6.6-5)
|
|
| hirsute |
Not vulnerable
(4:4.6.6-5)
|
|
| impish |
Not vulnerable
(4:4.6.6-5)
|
|
| jammy |
Not vulnerable
(4:4.6.6-5)
|
|
| trusty |
Released
(4:4.0.10-1ubuntu0.1+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(4:4.6.6-2)
|
|
| xenial |
Released
(4:4.5.4.1-2ubuntu2.1+esm3)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://www.phpmyadmin.net/security/PMASA-2017-8/
- https://github.com/phpmyadmin/phpmyadmin/commit/7232271a379396ca1d4b083af051262057003c41 (4.7-branch)
- https://github.com/phpmyadmin/phpmyadmin/commit/b6ca92cc75c8a16001425be7881e73430bcc35b8 (4.0-branch)
- https://www.cve.org/CVERecord?id=CVE-2017-18264
- NVD
- Launchpad
- Debian