Unsafe comparison of XSRF/CSRF token.

PMASA-2016-5

Announcement-ID: PMASA-2016-5

Date: 2016-01-24

Summary

Unsafe comparison of XSRF/CSRF token.

Description

The comparison of the XSRF/CSRF token parameter with the value saved in the session is vulnerable to timing attacks. Moreover, the comparison could be bypassed if the XSRF/CSRF token matches a particular pattern.

Severity

We consider this vulnerability to be serious.

Affected Versions

Versions 4.0.x (prior to 4.0.10.13), 4.4.x (prior to 4.4.15.3) and 4.5.x (prior to 4.5.4) are affected.

Solution

Upgrade to phpMyAdmin 4.0.10.13 or newer, 4.4.15.3 or newer, 4.5.4 or newer or apply patch listed below.

References

Thanks to Emanuel Bronshtein @e3amn2l for reporting this vulnerability.

Assigned CVE ids: CVE-2016-2041

CWE ids: CWE-661 CWE-208

Patches

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

• fe62b69a5b032de8e1d9d0a04456c1cecf46428c

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

• 3303b3d6c304d71da4a7d242307bf449aaa955c5

The following commits have been made on the 4.5 branch to fix this issue:

• ec0e88e37ef30a66eada1c072953f4ec385a3e49

More information

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