CVE-2018-25039 : Exploit Details and Defense Strategies

Thomson TCW710 RgUrlBlock.asp Persistent cross site scripting vulnerability affecting version ST5D.10.05.

Understanding CVE-2018-25039

Thomson TCW710 router is vulnerable to a persistent cross-site scripting issue in the /goform/RgUrlBlock.asp file.

What is CVE-2018-25039?

The vulnerability in Thomson TCW710 ST5D.10.05 allows remote attackers to execute malicious scripts by manipulating a specific argument in a POST request.

The Impact of CVE-2018-25039

CVSS Score: 3.5 (Low)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Integrity Impact: Low
Confidentiality Impact: None
Availability Impact: None
Scope: Unchanged
This vulnerability has been classified as CWE-80 Basic Cross Site Scripting.

Technical Details of CVE-2018-25039

Thomson TCW710 ST5D.10.05 vulnerability details.

Vulnerability Description

The vulnerability lies in the /goform/RgUrlBlock.asp file.
By manipulating the BasicParentalNewKeyword argument, attackers can inject and execute malicious scripts.

Affected Systems and Versions

Affected Product: TCW710
Vendor: Thomson
Affected Version: ST5D.10.05

Exploitation Mechanism

Attackers exploit the vulnerability by injecting malicious scripts via a POST request.

Mitigation and Prevention

Protecting against CVE-2018-25039.

Immediate Steps to Take

Disable remote access to the router if not required.
Regularly monitor for any suspicious activities on the network.
Implement network-level security measures to detect and prevent XSS attacks.

Long-Term Security Practices

Keep router firmware up to date to patch known vulnerabilities.
Educate users on safe browsing practices to prevent XSS attacks.
Conduct regular security audits to identify and mitigate potential risks.

Patching and Updates

Check for firmware updates from Thomson to address the vulnerability.