|CVSS SCORE||9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)|
AnyConnect VPN Client
The specific flaw exists due to insufficient signature checks with the Cisco AnyConnect VPN Client. When the client is invoked through the ActiveX control it downloads and checks a file called vpndownloader.exe. This file has to be properly signed by Cisco. Once this file is downloaded it is run and downloads additional configuration files. Within the downloaded config file it is possible to force a download of executable files. Those files are not properly checked for valid certificates and are run on the host as soon as they are downloaded.
Cisco has issued an update to correct this vulnerability. More details can be found at: