CVE-2017-12367 : Vulnerability Insights and Analysis

A vulnerability known as "Cisco WebEx Network Recording Player Denial of Service Vulnerability" has been identified in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) and WebEx Recording Format (WRF) files. This vulnerability can be exploited by a remote attacker who sends a malicious ARF or WRF file to a user through email or URL, tricking the user into launching the file. If successfully exploited, this vulnerability can cause the affected player to crash and, in certain situations, it may also allow the execution of arbitrary code on the targeted user's system. The Cisco Bug IDs associated with this vulnerability are: CSCve11545, CSCve02843, CSCve11548.

Understanding CVE-2017-12367

This section provides insights into the impact and technical details of CVE-2017-12367.

What is CVE-2017-12367?

The vulnerability identified as "Cisco WebEx Network Recording Player Denial of Service Vulnerability" affects Cisco WebEx Network Recording Player for ARF and WRF files. It allows a remote attacker to crash the player and potentially execute arbitrary code on the user's system.

The Impact of CVE-2017-12367

The exploitation of this vulnerability can lead to severe consequences:

Remote attackers can crash the affected player.
In certain scenarios, attackers may execute arbitrary code on the victim's system.

Technical Details of CVE-2017-12367

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability in Cisco WebEx Network Recording Player for ARF and WRF files enables remote attackers to induce a denial of service condition and potentially execute arbitrary code on the target system.

Affected Systems and Versions

Product: Cisco WebEx Recording Format and Advanced Recording Format Players
Version: Cisco WebEx Recording Format and Advanced Recording Format Players

Exploitation Mechanism

The vulnerability can be exploited by sending a malicious ARF or WRF file to a user via email or URL, persuading the user to open the file, leading to a crash of the player and potential code execution.

Mitigation and Prevention

Protecting systems from CVE-2017-12367 requires immediate actions and long-term security practices.

Immediate Steps to Take

Avoid opening ARF or WRF files from untrusted sources.
Implement email and URL filtering to block suspicious attachments.
Update the affected player to the latest version.

Long-Term Security Practices

Educate users on safe email and file handling practices.
Regularly update security software and patches.

Patching and Updates

Ensure timely installation of patches and updates provided by Cisco to address the vulnerability.