Vulnerability CVE-2017-3823


Published: 2017-02-01

Description:
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser.

See advisories in our WLB2 database:
Topic
Author
Date
High
Cisco WebEx Chrome Extension Remote Command Execution
William Webb
01.02.2017

Type:

CWE-78

(Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') )

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Cisco -> Webex 
Cisco -> Webex meeting center 
Cisco -> Webex meetings server 
Cisco -> Download manager 
Cisco -> Gpccontainer class 
Cisco -> Activetouch general plugin container 

 References:
http://www.securityfocus.com/bid/95737
https://0patch.blogspot.com/2017/01/micropatching-remote-code-execution-in.html
https://bugs.chromium.org/p/project-zero/issues/detail?id=1096
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124-webex

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