CVE-2018-0112: Input Validation
First published: Thu Apr 19 2018(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco WebEx Meetings Server | =2.7 | |
| Cisco WebEx Meetings Server | =2.8 | |
| Cisco WebEx Meetings Server | =3.0 | |
| Cisco Webex Meetings | =t31 | |
| Cisco Webex Meetings | =t31-sp11 | |
| Cisco Webex Business Suite 31 | <t31.23.2 | |
| Cisco Webex Business Suite 32 | <t32.10 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-0112?
CVE-2018-0112 is a vulnerability in Cisco WebEx Business Suite clients, Cisco WebEx Meetings, and Cisco WebEx Meetings Server that allows an authenticated, remote attacker to execute arbitrary code on a targeted system.
How severe is CVE-2018-0112?
CVE-2018-0112 has a severity rating of critical.
What is the affected software for CVE-2018-0112?
The affected software for CVE-2018-0112 includes Cisco WebEx Meetings, Cisco WebEx Meetings Server (versions 2.7, 2.8, and 3.0), and Cisco WebEx Business Suite (versions 31 and 32).
How can an attacker exploit CVE-2018-0112?
An attacker can exploit CVE-2018-0112 by leveraging insufficient input validation in the Cisco WebEx clients to execute arbitrary code on a targeted system.
Where can I find more information about CVE-2018-0112?
You can find more information about CVE-2018-0112 on the following websites: [SecurityFocus](http://www.securityfocus.com/bid/103920), [SecurityTracker](http://www.securitytracker.com/id/1040709), and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-wbs).
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- canonical/cisco webex meetings server
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