Advisory Details

December 10th, 2010

RealNetworks RealPlayer Custsupport.html Remote Code Execution Vulnerability

ZDI-10-278
ZDI-CAN-845

CVE ID CVE-2010-4388
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS RealNetworks
AFFECTED PRODUCTS RealPlayer
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10589. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the Custsupport.html component of the RealPlayer default installation. Due to a failure to properly sanitize user-supplied input, it is possible for an attacker to inject arbitrary code into the RealOneActiveXObject process. This can be abused to bypass the Local Machine Zone security policy and load unsafe controls. Successful exploitation of this issue leads to remote code execution under the context of the RealPlayer application.

VENDOR RESPONSE RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/12102010_player/en/
DISCLOSURE TIMELINE
  • 2010-07-20 - Vulnerability reported to vendor
  • 2010-12-10 - Coordinated public release of advisory
CREDIT Anonymous
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