CVE-2018-0112 Code injection in Cisco WebEx Clients
An authenticated attacker can execute arbitrary code on a user's system by sending a malicious Flash file via the WebEx client's file-sharing feature.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-0112?
CVE-2018-0112 is a critical code injection vulnerability in Cisco Webex Meetings, published on 19 Apr 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability in Cisco WebEx Business Suite clients, Cisco WebEx Meetings, and Cisco WebEx Meetings Server could allow an authenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability is due to insufficient input validation by the Cisco WebEx clients. An attacker could exploit this vulnerability by providing meeting attendees with a malicious Flash (.swf) file via the file-sharing capabilities of the client. Exploitation of this vulnerability could allow arbitrary code execution on the system of a targeted user. This affects the clients installed by customers when accessing a WebEx meeting. The following client builds of Cisco WebEx Business Suite (WBS30, WBS31, and WBS32), Cisco WebEx Meetings, and Cisco WebEx Meetings Server are impacted: Cisco WebEx Business Suite (WBS31) client builds prior to T31.23.2, Cisco WebEx Business Suite (WBS32) client builds prior to T32.10, Cisco WebEx Meetings with client builds prior to T32.10, Cisco WebEx Meetings Server builds prior to 2.8 MR2. Cisco Bug IDs: CSCvg19384, CSCvi10746.
Weakness: CWE-20
Which versions are affected by CVE-2018-0112?
It affects 4 products.
Products include Cisco Webex Business Suite 31, Cisco Webex Business Suite 32, Cisco Webex Meetings, Cisco Webex Meetings Server.
How do I fix CVE-2018-0112?
No fix has been published for CVE-2018-0112 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-2018-0112 being exploited?
There is no known exploitation of CVE-2018-0112 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings
- CVE-2018-0264 Code injection in Cisco WebEx Advanced Recording Format file players
- CVE-2018-15409 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities
- CVE-2018-15410 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities
- CVE-2018-15418 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities
- CVE-2018-0422 Privilege escalation in n/a
Sources
Also known as GHSA-rc89-r9w6-g3gv.