Internet Explorer execCommand Use-After-Free (CVE-2012-4969)
|Check Point Reference:||CPAI-2012-600|
|Source:||Microsoft Security Bulletin KB2757760|
|Protection Provided by:||
Who is Vulnerable?
Internet Explorer 6
Internet Explorer 7
Internet Explorer 8
Internet Explorer 9
A use-after-free vulnerability has been reported in Microsoft Internet Explorer.
Apply patches from: KB2757760
The vulnerability is caused due to an attempt by Interned Explorer to access an object that has been deleted. A remote attacker can exploit this issue by enticing a target user to open a specially crafted web page. Successful exploitation would allow an attacker to execute arbitrary code on the target.
This protection will detect and block attempts to exploit this vulnerability.
In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.
Security Gateway R75 / R71 / R70
How Can I Protect My Network?
- In the IPS tab, click Protections and find the Internet Explorer execCommand Use-After-Free protection using the Search tool and Edit the protection's settings.
- Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Web Client Enforcement Violation
Attack Information: Internet Explorer execCommand Use-After-Free