Actu
Vigil@nce - Cisco Web Security Appliance: memory leak via HTTP Response Code
July 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can create a memory leak via HTTP Response Code of
Cisco Web Security Appliance, in order to trigger a denial of
service.
Impacted products: AsyncOS, Cisco WSA.
Severity: 2/4.
Creation date: 19/05/2016.
DESCRIPTION OF THE VULNERABILITY
The Cisco Web Security Appliance product offers a proxy service.
However, when a special HTTP code is received, the memory
allocated to process the session is never freed.
An attacker can therefore create a memory leak via HTTP Response
Code of Cisco Web Security Appliance, in order to trigger a denial
of service.
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