An issue was discovered in Centreon Web up to 18.10.7, 19.04.x through 19.04.4 and 19.10.x up to 19.10.1. When a user changes his password on his profile page, the contact_autologin_key field in the database becomes blank when it should be NULL. This makes it possible to partially bypass authentication.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.