CVE-2017-20118 : Security Advisory and Response

A problematic vulnerability has been identified in version 4.3.7 of TrueConf Server, allowing for a basic cross-site scripting (DOM) attack.

Understanding CVE-2017-20118

This CVE involves a vulnerability in TrueConf Server version 4.3.7 that enables a cross-site scripting attack through manipulation of the domxss argument.

What is CVE-2017-20118?

The vulnerability in TrueConf Server version 4.3.7 allows attackers to conduct a basic cross-site scripting (DOM) attack by manipulating the /admin/conferences/list/ file.

The Impact of CVE-2017-20118

CVSS Base Score: 3.5 (Low Severity)
Attack Vector: Network
Attack Complexity: Low
User Interaction: Required
Privileges Required: Low
Integrity Impact: Low
This vulnerability can be exploited remotely, posing a risk due to publicly disclosed exploit details.

Technical Details of CVE-2017-20118

Vulnerability Description

The vulnerability in TrueConf Server version 4.3.7 allows for basic cross-site scripting (DOM) attacks by manipulating the domxss argument.

Affected Systems and Versions

Affected Product: TrueConf Server
Affected Version: 4.3.7

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by manipulating the domxss argument, enabling them to conduct a basic cross-site scripting (DOM) attack.

Mitigation and Prevention

Immediate Steps to Take

Update TrueConf Server to a patched version.
Implement input validation to prevent malicious input.
Monitor and restrict network traffic to detect and block potential attacks.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Apply security patches provided by TrueConf promptly to address the vulnerability and enhance system security.