Detections
Analytics
Cisco WebEx for Firefox RCE (cisco-sa-20170124-webex)
high Nessus Plugin ID 96907
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Synopsis
A browser extension installed on the remote host is affected by a remote code execution vulnerability.Description
The Cisco WebEx Extension for Firefox installed on the remote host is affected by a remote code execution vulnerability due to a crafted pattern that permits any URL utilizing it to automatically use native messaging to access sensitive functionality provided by the extension.An unauthenticated, remote attacker can exploit this vulnerability to execute arbitrary code by convincing a user to visit a web page that contains this pattern and starting a WebEx session.
Solution
Upgrade ActiveTouch General Plugin Container to version 106, or else upgrade Cisco WebEx Extension to version 1.0.5 or later. However, if you are using both, then you will need to upgrade both.See Also
http://www.nessus.org/u?068aee48
https://bugs.chromium.org/p/project-zero/issues/detail?id=1096
https://bugs.chromium.org/p/project-zero/issues/detail?id=1100
Plugin Details
Severity: High
ID: 96907
File Name: cisco_webex_extension_rce_firefox.nasl
Version: 1.8
Type: local
Agent: windows
Family: Windows
Published: 1/31/2017
Updated: 7/6/2018
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.9
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 8.1
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 8.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:mozilla:firefox, cpe:/a:cisco:webex
Required KB Items: installed_sw/Mozilla Firefox
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/28/2017
Vulnerability Publication Date: 1/23/2017
Exploitable With
Metasploit (Cisco WebEx Chrome Extension RCE (CVE-2017-3823))
Reference Information
CVE: CVE-2017-3823
BID: 95737