Hackers Backdooring Cisco WebVPN To Steal Customers' Passwords
Oct 09, 2015
Virtual Private Networks (VPNs) , which is widely used by many businesses and organisations to provide secure access to their workers, are being abused to pilfer corporate user credentials. Researchers from security firm Volexity discovered a new attack campaign that targets a widely used VPN product by Cisco Systems to install backdoors that collect employees' usernames and passwords used to login to corporate networks. The product in question is Cisco Systems' Web-based VPN – Clientless SSL VPN . Once an employee is authenticated, Clientless SSL VPNs allows him/her to access internal web resources, browse internal file shares, and launch plug-ins, which let them access internal web resources through telnet, SSH, or similar network protocols. The backdoor contains malicious JavaScript code that attackers used to inject into the login pages. Once injected, the backdoor is hard to detect because the malicious JavaScript is hosted on an external compromised...
