CVE-2017-12359 : Exploit Details and Defense Strategies

A Buffer Overflow vulnerability in Cisco WebEx Network Recording Player for Advanced Recording Format (.arf) files could allow an attacker to execute arbitrary code on a system.

Understanding CVE-2017-12359

A security issue identified in the Cisco WebEx Network Recording Player for .arf files allows attackers to run unauthorized commands on a system.

What is CVE-2017-12359?

The vulnerability in Cisco WebEx Network Recording Player for .arf files enables attackers to execute arbitrary code on a system by tricking users into opening a malicious file.

The Impact of CVE-2017-12359

Attackers can exploit this vulnerability to execute unauthorized commands on a system.
Various Cisco WebEx platforms are affected, including Cisco WebEx Business Suite meeting sites and Cisco WebEx Meetings Server.

Technical Details of CVE-2017-12359

A Buffer Overflow vulnerability in Cisco WebEx Network Recording Player for .arf files allows attackers to execute arbitrary code on a system.

Vulnerability Description

An attacker can provide a user with a malicious .arf file via email or URL to exploit the vulnerability.
Successful exploitation allows arbitrary code execution on the targeted user's system.

Affected Systems and Versions

Cisco WebEx Business Suite meeting sites
Cisco WebEx Meetings sites
Cisco WebEx Meetings Server
Cisco WebEx ARF players

Exploitation Mechanism

Attackers send a malicious .arf file to a user via email or URL.
Users are tricked into opening the file, leading to arbitrary code execution on the system.

Mitigation and Prevention

Immediate Steps to Take

Avoid opening .arf files from untrusted sources.
Update Cisco WebEx Network Recording Player to the latest version. Long-Term Security Practices
Educate users on identifying suspicious emails and files.
Implement email filtering to block malicious attachments. Patching and Updates
Apply patches and updates provided by Cisco to address the vulnerability.