CVE-2016-9847 phpMyAdmin Cryptographic Vulnerability

What is CVE-2016-9847?

CVE-2016-9847 is a medium-severity 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. When the user does not specify a blowfish_secret key for encrypting cookies, phpMyAdmin generates one at runtime. A vulnerability was reported where the way this value is created uses a weak algorithm. This could allow an attacker to determine the user's blowfish_secret and potentially decrypt their cookies. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.

Weakness: CWE-310

Which versions are affected by CVE-2016-9847?

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

Products include Phpmyadmin Phpmyadmin.

How do I fix CVE-2016-9847?

Upgrade phpmyadmin/phpmyadmin to a fixed version for your release line: 4.0.10.18, 4.4.15.9 or 4.6.5.

Is CVE-2016-9847 being exploited?

There is no known exploitation of CVE-2016-9847 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-2016-9847, CVE-2016-1000360, DEBIAN-CVE-2016-9847, GHSA-9xhq-pm7v-693p, UBUNTU-CVE-2016-9847.