MySQL 5.5.19 and possibly other versions, and MariaDB 5.5.28a, 5.3.11, 5.2.13, 5.1.66, and possibly other versions, generates different error messages with different time delays depending on whether a user name exists, which allows remote attackers to enumerate valid usernames.
CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Pearson VUE is part of Pearson, the world's largest learning company. Over 450 credential owners (including IT organizations such as IBM, Adobe, etc.) across the globe use the company's solutions to develop, manage, deliver and grow their testing programs.
Ivan Ristic is well-known in the information security world, and his name has become almost a synonym for SSL Labs. Before that, he was mostly known for his work with OWASP and the development of ModSecurity.