CVE-2020-17496 Explained : Impact and Mitigation

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. This vulnerability exists due to an incomplete fix for CVE-2019-16759.

Understanding CVE-2020-17496

This CVE involves vBulletin versions 5.5.4 through 5.6.2, enabling remote command execution through a specific type of request.

What is CVE-2020-17496?

CVE-2020-17496 is a security vulnerability in vBulletin versions 5.5.4 through 5.6.2 that allows attackers to execute remote commands by manipulating data in a particular type of request.

The Impact of CVE-2020-17496

This vulnerability can be exploited by malicious actors to execute commands remotely, potentially leading to unauthorized access, data breaches, and further compromise of the affected systems.

Technical Details of CVE-2020-17496

vBulletin 5.5.4 through 5.6.2 is susceptible to remote command execution due to a flaw in handling subWidgets data in a specific type of request.

Vulnerability Description

The vulnerability allows attackers to execute commands remotely by crafting malicious subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request.

Affected Systems and Versions

vBulletin versions 5.5.4 through 5.6.2

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted request containing malicious subWidgets data, enabling them to execute commands on the target system.

Mitigation and Prevention

To address CVE-2020-17496 and enhance system security, follow these mitigation steps:

Immediate Steps to Take

Apply security patches provided by vBulletin promptly.
Monitor network traffic for any suspicious activities.
Implement strong access controls and authentication mechanisms.

Long-Term Security Practices

Regularly update and patch all software and applications.
Conduct security assessments and penetration testing to identify vulnerabilities.
Educate users and administrators about safe computing practices.

Patching and Updates

Stay informed about security updates and patches released by vBulletin.
Apply patches as soon as they are available to mitigate the risk of exploitation.