Vulnerabilities > CVE-2015-20110 - Improper Restriction of Excessive Authentication Attempts vulnerability in Jhipster

Summary

JHipster generator-jhipster before 2.23.0 allows a timing attack against validateToken due to a string comparison that stops at the first character that is different. Attackers can guess tokens by brute forcing one character at a time and observing the timing. This of course drastically reduces the search space to a linear amount of guesses based on the token length times the possible characters.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-307 - Improper Restriction of Excessive Authentication Attempts

References