Advisory Details

December 6th, 2017

Cisco WebEx Recorder and Player WRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2017-12371
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Cisco
AFFECTED PRODUCTS	WebEx
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco WebEx Recorder and 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 WRF files. Crafted data in a WRF file can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code under 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-20171129-webex-players
DISCLOSURE TIMELINE	2017-08-03 - Vulnerability reported to vendor 2017-12-06 - Coordinated public release of advisory
CREDIT	Steven Seeley (mr_me) of Offensive Security

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