Incomplete protection of Oracle Database locked accounts (CVE-2012-0510)
Saturday, April 21st, 2012 | Author: admin
Details: Oracle Database provides OCIPasswordChange API to change user passwords. This API can be used while a user is logged on as well as before the authentication process is completed, this is because it can be used for accounts that have the password expired so that the user is able to change an expired password for a new one. It was observed that this API can be used to change the password of users that are locked. The purpose of locking an account is to deactivate it once it has received too many failed logins attempts or when no login is expected. If it is allowed to change the password of a locked account it is not correctly protecting it because brute force can be applied on an account to change its password and eventually it will get changed to a known password. The attacker will be able to log in using the account only once it is unlocked.
Category: DataBase Security