Cisco Wide Area Application Services SMART-SSL Accelerator Denial of Service Vulnerability

A vulnerability in SMART-SSL Accelerator functionality for Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition where the WAN optimization could stop functioning while the process restarts.

The vulnerability is due to a Secure Sockets Layer/Transport Layer Security (SSL/TLS) alert being incorrectly handled when in a specific SSL/TLS connection state. An attacker could exploit this vulnerability by establishing a SMART-SSL connection through the targeted device. The attacker would then send a crafted stream of SSL/TLS traffic. An exploit could allow the attacker to cause a DoS condition where WAN optimization could stop processing traffic for a short period of time.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
http://ift.tt/2p5L83E A vulnerability in SMART-SSL Accelerator functionality for Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition where the WAN optimization could stop functioning while the process restarts.

The vulnerability is due to a Secure Sockets Layer/Transport Layer Security (SSL/TLS) alert being incorrectly handled when in a specific SSL/TLS connection state. An attacker could exploit this vulnerability by establishing a SMART-SSL connection through the targeted device. The attacker would then send a crafted stream of SSL/TLS traffic. An exploit could allow the attacker to cause a DoS condition where WAN optimization could stop processing traffic for a short period of time.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
http://ift.tt/2p5L83E
Security Impact Rating: Medium
CVE: CVE-2017-6628

from Cisco Security Advisory http://ift.tt/2p5L83E