If an attacker is able to convince a victim on a specially crafted link, the victim is logged in to the attackers customer account. If the victim does not notice this, this might lead to their order details being stored into the attackers account. The attack only works when the event is available on a different domain than the organizer page.
Weakness
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.
Extended Description
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.
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/196.html
- https://cwe.mitre.org/data/definitions/21.html
- https://cwe.mitre.org/data/definitions/31.html
- https://cwe.mitre.org/data/definitions/39.html
- https://cwe.mitre.org/data/definitions/59.html
- https://cwe.mitre.org/data/definitions/60.html
- https://cwe.mitre.org/data/definitions/61.html