Advisory Details

December 6th, 2017

Cisco WebEx Network Recording Player Command Injection Remote Code Execution Vulnerability

CVE ID	CVE-2017-12372
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
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 ['29640']. 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 Network Recording Player. Authentication is not required to exploit this vulnerability. The specific flaw exists within the wbx URI handler. When parsing the register parameter, the process does not properly validate a user-supplied string before using it to execute a system command. An attacker can leverage this vulnerability to execute commands under the context of the current user.
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	2017-08-10 - Vulnerability reported to vendor 2017-12-06 - Coordinated public release of advisory
CREDIT	rgod

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