A vulnerability in the web management interface of the AOS-CX OS user authentication service could allow an authenticated remote attacker to hijack an active user session. Successful exploitation may enable the attacker to maintain unauthorized access to the session, potentially leading to the view or modification of sensitive configuration data.
Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.
Such a scenario is commonly observed when:
In the generic exploit of session fixation vulnerabilities, an attacker creates a new session on a web application and records the associated session identifier. The attacker then causes the victim to associate, and possibly authenticate, against the server using that session identifier, giving the attacker access to the user’s account through the active session.