CVE-2017-6753 Code injection in Cisco WebEx Browser Extension
Remote attackers can execute arbitrary code via malicious links in Cisco WebEx browser extensions on Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-6753?
CVE-2017-6753 is a high-severity code injection vulnerability in Cisco Webex Meetings, published on 25 Jul 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox 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, Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center), and Cisco WebEx Meetings when they are running on Microsoft Windows. The vulnerability is due to a design defect in the extension. An attacker who 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. The following versions of the Cisco WebEx browser extensions are affected: Versions prior to 1.0.12 of the Cisco WebEx extension on Google Chrome, Versions prior to 1.0.12 of the Cisco WebEx extension on Mozilla Firefox. Cisco Bug IDs: CSCvf15012 CSCvf15020 CSCvf15030 CSCvf15033 CSCvf15036 CSCvf15037.
Weakness: CWE-119
Which versions are affected by CVE-2017-6753?
It affects 20 products.
Products include Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Meetings, Cisco Webex Meetings Server, Cisco Webex Meetings Server 2.0, Cisco Webex Meetings Server 2.0 Mr8 Patch and 14 more.
How do I fix CVE-2017-6753?
No fix has been published for CVE-2017-6753 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2017-6753 being exploited?
There is no known exploitation of CVE-2017-6753 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings
Sources
Also known as GHSA-j6hm-qxwv-3jwr.