Path traversal with SaveDir and UploadDir

2016-07-12T00:00:00
ID PHPMYADMIN:PMASA-2016-37
Type phpmyadmin
Reporter phpMyAdmin
Modified 2016-07-12T00:00:00

Description

PMASA-2016-37

Announcement-ID: PMASA-2016-37

Date: 2016-07-12

Summary

Path traversal with SaveDir and UploadDir

Description

A vulnerability was reported with the %u username replacement functionality of the SaveDir and UploadDir features. When the username substitution is configured, a specially-crafted user name can be used to circumvent restrictions to traverse the file system.

Severity

We consider this vulnerability to be serious, however due to the mitigation factors the default state is not vulnerable.

Mitigation factor

1) A system must be configured with the %u username replacement, such as $cfg['SaveDir'] = 'SaveDir_%u'; 2) The user must be able to create a specially-crafted MySQL user, including the /. sequence of characters, such as /../../

Affected Versions

All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected

Solution

Upgrade to phpMyAdmin 4.6.4, 4.4.15.8, or 4.0.10.17 or newer or apply patch listed below.

References

Thanks to Emanuel Bronshtein @e3amn2l for reporting this vulnerability.

Assigned CVE ids: CVE-2016-6614

CWE ids: CWE-661

Patches

The following commits have been made on the 4.0 branch to fix this issue:

The following commits have been made on the 4.4 branch to fix this issue:

The following commits have been made on the 4.6 branch to fix this issue:

More information

For further information and in case of questions, please contact the phpMyAdmin team. Our website is phpmyadmin.net.