PMASA-2016-45
Announcement-ID: PMASA-2016-45
Date: 2016-07-21
Summary
DOS attack with forced persistent connections
Description
A vulnerability was discovered where an unauthenticated user is able to execute a denial-of-service (DOS) attack by forcing persistent connections when phpMyAdmin is running with $cfg['AllowArbitraryServer']=true;.
Severity
We consider this vulnerability to be critical, although note that phpMyAdmin is not vulnerable by default.
Mitigation factor
This attack requires phpMyAdmin to be configured with`$cfg['AllowArbitraryServer']=true;`
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-2016-6622
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 security team at security@phpmyadmin.net.