Description

Spring Security versions 4.2.x prior to 4.2.12, 5.0.x prior to 5.0.12, and 5.1.x prior to 5.1.5 contain an insecure randomness vulnerability when using SecureRandomFactoryBean#setSeed to configure a SecureRandom instance. In order to be impacted, an honest application must provide a seed and make the resulting random material available to an attacker for inspection.

Affected Spring Products and Versions

• Spring Security 4.2 to 4.2.11
• Spring Security 5.0 to 5.0.11
• Spring Security 5.1 to 5.1.4

Mitigation

Users of affected versions should apply the following mitigation:

• 4.2.x users should upgrade to 4.2.12
• 5.0.x users should upgrade to 5.0.12
• 5.1.x users should upgrade to 5.1.5

Credit

This issue was identified and responsibly reported by Thijs Alkemade.

History

2019-04-02: Initial vulnerability report published.