Comment # 21 on bug 994313 from Marcus Meissner

https://www.phpmyadmin.net/security/PMASA-2016-36/

PMASA-2016-36

Announcement-ID: PMASA-2016-36

Date: 2016-07-12
Summary

Local file exposure through symlinks with UploadDir
Description

A vulnerability was found where a user can specially craft a symlink on disk,
to a file which phpMyAdmin is permitted to read but the user is not, which
phpMyAdmin will then expose to the user.
Severity

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

1) The installation must be run with UploadDir configured (not the default) 2)
The user must be able to create a symlink in the UploadDir 3) The user running
the phpMyAdmin application must be able to read the file
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-2016-6613

CWE ids: CWE-661
Patches

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

    ab05803

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

    c976baa

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

    0d57c09