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Category:   Application (Generic)  >   Cisco WebEx Event Center Vendors:   Cisco, WebEx
Cisco WebEx Event Center Input Validation Flaws in Chrome/Firefox Browser Extensions Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038909
SecurityTracker URL:
CVE Reference:   CVE-2017-6753   (Links to External Site)
Updated:  Jul 17 2017
Original Entry Date:  Jul 17 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to browser extension version 1.0.12
Description:   A vulnerability was reported in Cisco WebEx Event Center. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted web content that, when loaded by the target user, will trigger input validation flaws in the Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox on Windows-based systems and execute arbitrary code on the target user's system. The code will run with the privileges of the web browser application.

The original advisory is available at:

The vendor has assigned bug ID CSCvf15036 to this vulnerability.

Tavis Ormandy of Google Project Zero and Cris Neckar of Divergent Security reported this vulnerability.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (browser extension version 1.0.12 for Chrome, browser extension version 1.0.12 for Firefox).

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents



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