ZDI-11-341 : Cisco WebEx Player WRF Type 0 Parsing Remote Code Execution Vulnerability

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ZDI-11-341 : Cisco WebEx Player WRF Type 0 Parsing Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-11-341
December 7, 2011

• – CVE ID:
  CVE-2011-3319

• – CVSS:
  9, AV:N/AC:L/Au:N/C:P/I:P/A:C

• – Affected Vendors:

Cisco

• – Affected Products:

Cisco WebEx

• – Vulnerability Details:
  This vulnerability allows remote attackers to execute arbitrary code on
  vulnerable installations of Cisco WebEx Player. 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 atdl2006.dll. The vulnerability is
caused by lack of validation when parsing WRF files. A specially crafted
WRF file will cause the application to incorrectly push a size value to
a memcpy, allowing for corruption of heap memory. An attacker can
leverage this vulnerability to execute arbitrary code on the target
system under the context of the current user.

• – Vendor Response:

Cisco has issued an update to correct this vulnerability. More details
can be found at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20111026-webex

• – Disclosure Timeline:
  2011-05-25 - Vulnerability reported to vendor
  2011-12-07 - Coordinated public release of advisory

• – Credit:
  This vulnerability was discovered by:

• Aniway ([email protected])

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