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RealNetworks RealPlayer URL Parsing Stack Buffer Overflow (CVE-2012-5691)


Check Point Reference: CPAI-2013-012
Date Published:
Source: RealNetworks Advisory 56956
Industry Reference(s): CVE-2012-5691
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
RealNetworks RealPlayer and prior
Vulnerability Description
A stack buffer overflow vulnerability exists in RealNetworks RealPlayer. Successful exploitation can result in arbitrary code execution in the context of the currently logged in user.
Vulnerability Details
The vulnerability is due to insufficient sanitation of the URLs while parsing RealMedia files. The attacker creates a malicious Microsoft .url file that has an extension associated with RealPlayer, such as .ram or .ra and delivers it to the target user. The malicious Real Audio Metadata file contains an overly long URL. The vulnerability is triggered when the malicious file is processed by the affected application.

Protection Overview
The protection will detect and block the transfer of malicious files attempting to trigger this vulnerability.

In order for the protection to be activated, update your product to the latest update. For information on how to update , 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?

  1. In the IPS tab, click Protections and find the RealNetworks RealPlayer URL Parsing Stack Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Media Player Enforcement Violation
Attack Information: RealNetworks RealPlayer URL Parsing Stack Buffer Overflow