HomePentest-Tools.com Logo

Cisco ASA Clientless SSL VPN CIFS Heap Overflow Vulnerability (cisco-sa-20170208-asa) CVE-2017-3807

CVSSv3 Score
Vulnerability description

A vulnerability in Common Internet Filesystem (CIFS) code in the Clientless SSL VPN functionality of Cisco ASA Software could allow an authenticated, remote attacker to cause a heap overflow.

Risk description

The vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by sending a crafted URL to the affected system. Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid TCP connection is needed to perform the attack. The attacker needs to have valid credentials to log in to the Clientless SSL VPN portal. An exploit could allow the remote attacker to cause a reload of the affected system or potentially execute code.


See the referenced vendor advisory for a solution.

Not available
Detectable with
Network Scanner
Scan engine
Exploitable with Sniper
CVE Published
Feb 9, 2017
Detection added at
Software Type
Not available
Not available
Not available