TippingPoint Zero Day Initiative

Cisco WebEx Network Recording Player ARF File Memory Corruption Remote Code Execution Vulnerability

ZDI-17-443: June 23rd, 2017


CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco WebEx Network Recording 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 the processing of ARF files. The issue results from the lack of proper validation of user-supplied data which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.

Vendor Response

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

Disclosure Timeline

    2016-12-19 - Vulnerability reported to vendor
    2017-06-23 - Coordinated public release of advisory


This vulnerability was discovered by:
    Steven Seeley of Source Incite