Cisco Webex Recorder and Player ATAS32 Out-Of-Bounds Read Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco WebEx. 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 processing of WRF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current process.
Additional Details
Cisco has issued an update to correct this vulnerability. More details can be found at:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-webex-rce
Disclosure Timeline
- 2018-06-13 - Vulnerability reported to vendor
- 2018-10-08 - Coordinated public release of advisory
- 2018-10-08 - Advisory Updated
Credit
Michael Flanders of Trend Micro Zero Day Initiative
