CVE-2017-20116 Explained : Impact and Mitigation

A vulnerability in TrueConf Server version 4.3.7 allows for a basic cross-site scripting attack. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2017-20116

TrueConf Server Reflected cross-site scripting

What is CVE-2017-20116?

Researchers discovered a vulnerability in TrueConf Server 4.3.7, enabling remote attackers to execute a basic cross-site scripting attack by manipulating a specific argument.

The Impact of CVE-2017-20116

CVSS Base Score: 3.5 (Low)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
This vulnerability poses a low severity risk with potential for remote exploitation.

Technical Details of CVE-2017-20116

Vulnerability Description

The vulnerability affects an unidentified function in the /admin/group/list/ file, allowing attackers to conduct a basic cross-site scripting attack.

Affected Systems and Versions

Affected Product: TrueConf Server
Affected Version: 4.3.7

Exploitation Mechanism

By manipulating the checked_group_id argument, attackers can execute a basic cross-site scripting (Reflected) attack remotely.

Mitigation and Prevention

Immediate Steps to Take

Update TrueConf Server to the latest version.
Implement input validation to prevent malicious input.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly conduct security assessments and audits.
Educate users on safe browsing practices and phishing awareness.

Patching and Updates

Stay informed about security updates and patches released by TrueConf.