CVE-2016-6606 Information

Description

An issue was discovered in cookie encryption in phpMyAdmin. The decryption of the username/password is vulnerable to a padding oracle attack. This can allow an attacker who has access to a user’s browser cookie file to decrypt the username and password. Furthermore the same initialization vector (IV) is used to hash the username and password stored in the phpMyAdmin cookie. If a user has the same password as their username an attacker who examines the browser cookie can see that they are the same - but the attacker can not directly decode these values from the cookie as it is still hashed. 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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/94114 https://lists.debian.org/debian-lts-announce/2019/06/msg00009.html https://security.gentoo.org/glsa/201701-32 https://www.phpmyadmin.net/security/PMASA-2016-29

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1