CVE-2016-6624 phpMyAdmin IPv6 and proxy server IP-based authentication rule circumvention

What is CVE-2016-6624?

CVE-2016-6624 is a medium-severity authentication bypass vulnerability in Phpmyadmin Phpmyadmin, published on 11 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in phpMyAdmin involving improper enforcement of the IP-based authentication rules. When phpMyAdmin is used with IPv6 in a proxy server environment, and the proxy server is in the allowed range but the attacking computer is not allowed, this vulnerability can allow the attacking computer to connect despite the IP rules. 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.

Weakness: CWE-254

Which versions are affected by CVE-2016-6624?

6 open source packages ship an affected version, including phpmyadmin/phpmyadmin. It affects 1 product.

Products include Phpmyadmin Phpmyadmin.

How do I fix CVE-2016-6624?

Upgrade phpmyadmin/phpmyadmin to a fixed version for your release line: 4.0.10.17, 4.4.15.8 or 4.6.4.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2016-6624 being exploited?

There is no known exploitation of CVE-2016-6624 in the wild and no public exploit code.

Other vulnerabilities in Phpmyadmin Phpmyadmin

• CVE-2008-7251 Misconfiguration in n/a Critical 10.0
• CVE-2008-7252 phpMyAdmin unsafely handles temporary files Critical 10.0
• CVE-2007-0203 Other in n/a Critical 10.0
• CVE-2004-1147 Command injection in n/a Critical 10.0
• CVE-2020-22452 phpmyadmin contains SQL Injection vulnerability Critical 9.8

All Phpmyadmin Phpmyadmin vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2016-6624, DEBIAN-CVE-2016-6624, GHSA-mhxj-6vf8-mwv3, UBUNTU-CVE-2016-6624.