Advisory Details

August 23rd, 2010

Cisco WebEx Player ARF String Parsing Remote Code Execution Vulnerability

ZDI-10-155
ZDI-CAN-627

CVE ID
CVSS SCORE 10.0, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Cisco
AFFECTED PRODUCTS WebEx
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9936. 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 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 during the parsing of strings defined within the ARF file format. Strings are typically prefixed by their valid length. By supplying a string much longer than the defined length a heap overflow will occur which can be further leveraged to execute arbitrary code under the context of the current user.

ADDITIONAL DETAILS

This issue has been resolved in T27FR14, deployed to WebEx customers in April.


DISCLOSURE TIMELINE
  • 2010-01-06 - Vulnerability reported to vendor
  • 2010-08-23 - Coordinated public release of advisory
CREDIT Gabriel Menezes Nunes
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