Vulnerabilidad CSRF en LinkedIn
CSRF vulnerability in LinkedIn's "Add connections" and "Send Invitation" functionality that allowed forcing the sending of invitations without user consent.
Antecedentes
LinkedIn is a professional social networking platform launched on May 5, 2003. In the third quarter of 2012, the service had more than 175 million users.
Description
The vulnerability exploits CSRF in LinkedIn's "Add connections" and "Send Invitation" functionalities. The system relies solely on session cookies for authentication without proper validation of CSRF tokens. Attackers can create malicious webpages that force authenticated users to send invitations to attacker-controlled addresses via HTTP GET requests.
Business impact
Attackers gain unauthorized access to information shared by users added to their contacts without the user's knowledge or consent.
Systems affected
www.linkedin.com
Solución
The vendor fixed the vulnerability.
Calendario de divulgación
References
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