Advisory Details

April 1st, 2011

RealNetworks Helix Server x-wap-profile Format String Remote Code Execution Vulnerability

ZDI-11-114
ZDI-CAN-921

CVE ID CVE-2010-4235
CVSS SCORE 10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS RealNetworks
AFFECTED PRODUCTS Helix Server
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['10863']. 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 Helix Server products. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the rmserver.exe process. This process is active by default on all Helix Server installations. Due to a failure to properly sanitize the contents of the 'x-wap-profile' header, it is possible to provide malicious data that is passed directly to a format string function. Remote attackers could leverage this vulnerability to execute arbitrary code under the context of the SYSTEM user.

ADDITIONAL DETAILS RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://www.realnetworks.com/helix-support/security-updates.aspx
DISCLOSURE TIMELINE
  • 2010-10-02 - Vulnerability reported to vendor
  • 2011-04-01 - Coordinated public release of advisory
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