CVE-2018-0112 : Vulnerability Insights and Analysis

A weakness in Cisco WebEx Business Suite clients, Cisco WebEx Meetings, and Cisco WebEx Meetings Server could allow an authorized remote attacker to execute unauthorized actions on a specific system due to insufficient input verification by the clients.

Understanding CVE-2018-0112

What is CVE-2018-0112?

This vulnerability in Cisco WebEx clients allows an attacker to distribute a malicious Flash file to meeting attendees, potentially leading to the execution of unauthorized code on the victim's system.

The Impact of CVE-2018-0112

Successful exploitation of this vulnerability could result in the execution of unauthorized code on the targeted user's system, posing a significant security risk to affected systems.

Technical Details of CVE-2018-0112

Vulnerability Description

The vulnerability stems from insufficient input validation by Cisco WebEx clients, enabling attackers to distribute malicious Flash files to exploit the system.

Affected Systems and Versions

Cisco WebEx Business Suite (WBS30, WBS31, and WBS32)
Cisco WebEx Meetings
Cisco WebEx Meetings Server
Impacted versions include specific client builds prior to T31.23.2, T32.10, and 2.8 MR2.

Exploitation Mechanism

Attackers can exploit this vulnerability by sharing a malicious Flash (.swf) file through the client's file-sharing features.

Mitigation and Prevention

Immediate Steps to Take

Update affected Cisco WebEx clients to the latest secure versions.
Educate users on the risks of opening files from unknown sources.
Implement network security measures to detect and block malicious files.

Long-Term Security Practices

Regularly update and patch all software and applications.
Conduct security awareness training for employees to recognize and report suspicious activities.

Patching and Updates

Apply patches and updates provided by Cisco to address this vulnerability and enhance system security.