#VU33571 Security Features in phpMyAdmin - CVE-2016-9850

Vulnerability identifier: #VU33571

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-9850

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
phpMyAdmin
Web applications / Remote management & hosting panels

Vendor: phpMyAdmin

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

An issue was discovered in phpMyAdmin. Username matching for the allow/deny rules may result in wrong matches and detection of the username in the rule due to non-constant execution time. 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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

phpMyAdmin: 4.0.0 - 4.0.10.17, 4.4.0 - 4.4.15.8, 4.6.0 - 4.6.4

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External links
https://www.securityfocus.com/bid/94529
https://lists.debian.org/debian-lts-announce/2019/06/msg00009.html
https://security.gentoo.org/glsa/201701-32
https://www.phpmyadmin.net/security/PMASA-2016-61

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.