An insecure deserialization vulnerability in vsDesk allows a remote attacker to gain unauthorized administrative access. By manipulating application configuration data, an attacker can force the system to authenticate against an arbitrary LDAP server and provision a new administrative account.
Apply patch from vendor https://vsdesk.ru/ . Versions 14.0402 and on have the patch.
Authentication Bypass by Primary Weakness The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.