ArbitraryServerRegexp bypass

PMASA-2016-52

Announcement-ID: PMASA-2016-52

Date: 2016-07-25

Summary

ArbitraryServerRegexp bypass

Description

A vulnerability was reported with the $cfg['ArbitraryServerRegexp'] configuration directive. An attacker could reuse certain cookie values in a way of bypassing the servers defined by ArbitraryServerRegexp.

Severity

We consider this vulnerability to be critical.

Mitigation factor

Only servers using $cfg['ArbitraryServerRegexp'] are vulnerable to this attack.

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, 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-2016-6629

CWE ids: CWE-661

Patches

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

• a97be3a

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

• cd682a6

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

• 95b7b7d

More information

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