The action get_sess_id in the web application of Pydio through 8.2.2 discloses the session cookie value in the response body, enabling scripts to get access to its value. This identifier can be reused by an attacker to impersonate a user and perform actions on behalf of him/her (if the session is still active).
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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pydio | Pydio | * | 8.2.2 (including) |
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.