Rational Test Control Panel in IBM Rational Test Workbench and Rational Test Virtualization Server 8.0.0.x before 8.0.0.5, 8.0.1.x before 8.0.1.6, 8.5.0.x before 8.5.0.4, 8.5.1.x before 8.5.1.5, 8.6.0.x before 8.6.0.4, and 8.7.0.x before 8.7.0.2 uses the MD5 algorithm for password hashing, which makes it easier for remote attackers to bypass authentication via unspecified vectors.