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Cisco WebEx Network Recording Player Buffer Overflow Vulnerability

cisco-sa-20180103-wnrp · Medium · Published · Updated

A vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) files could allow a local attacker to execute arbitrary code on the system of a user. The attacker could exploit this vulnerability by sending the user a link or email attachment with a malicious ARF file and persuading the user to follow the link or launch the file. Successful exploitation could allow the attacker to execute arbitrary code on the user’s system. The Cisco WebEx Players are applications that are used to play back WebEx meeting recordings that have been recorded by an online meeting attendee. The player can be automatically installed when the user accesses a recording file that is hosted on a WebEx server. Cisco has updated the affected version of the Cisco WebEx Business Suite meeting sites, Cisco WebEx Meetings sites, Cisco WebEx Meetings Server, and Cisco WebEx ARF players to address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180103-wnrp

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability. However, it is possible to remove all WebEx software completely from a system using the Meeting Services Removal Tool (for Microsoft Windows) or Mac WebEx Meeting Application Uninstaller (for Apple Mac OS X), available for download from the Cisco Collaboration Help for Cisco Spark, WebEx, and Jabber article at https://collaborationhelp.cisco.com/article/en-us/WBX000026396 .

Removal of the WebEx software from a Linux or UNIX-based system can be accomplished by following the steps in the Cisco Collaboration Help for Cisco Spark, WebEx, and Jabber article at https://collaborationhelp.cisco.com/article/en-us/WBX28548 .

CVEsCVE-2018-0103
Cisco Bug IDsCSCvg78835, CSCvg78839, CSCvg78837
CVSS ScoreBase 5.5
Base 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco WebEx Meetings Server, Cisco Webex Meetings

Related Products

Product CVE Evidence
Cisco Webex Network Recording Player CVE-2018-0103 Cisco OpenVuln
Cisco Webex Meetings CVE-2018-0103 Cisco OpenVuln
Cisco WebEx Meetings Server CVE-2018-0103 Cisco OpenVuln
Cisco WebEx ARF Player CVE-2018-0103 Cisco OpenVuln