CVE-2019-13407 : Vulnerability Insights and Analysis

A vulnerability known as XSS has been discovered in firmware versions of Advan VD-1 up to 230. When a requested resource is not found on the page cgibin/ssi.cgi, VD-1 presents an error message indicating a path error. This error message, however, fails to adequately escape certain characters, resulting in a reflected XSS vulnerability.

Understanding CVE-2019-13407

Advan VD-1 has a reflected XSS vulnerability in page cgibin/ssi.cgi

What is CVE-2019-13407?

CVE-2019-13407 is a Cross-site Scripting (XSS) vulnerability found in Advan VD-1 firmware versions up to 230. It occurs when the error message displayed by VD-1 in response to a missing resource in cgibin/ssi.cgi does not properly escape certain characters, leading to a reflected XSS vulnerability.

The Impact of CVE-2019-13407

Attackers can exploit this vulnerability to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-13407

Advan VD-1 firmware up to version 230 is affected by this reflected XSS vulnerability.

Vulnerability Description

The vulnerability arises due to the failure of VD-1 to properly escape certain characters in the error message displayed when a requested resource is not found in cgibin/ssi.cgi, allowing for the execution of malicious scripts.

Affected Systems and Versions

Product: Advan VD-1 firmware
Vendor: AndroVideo
Versions affected: up to 230

Exploitation Mechanism

Attackers can craft URLs containing malicious scripts and trick users into clicking them, exploiting the vulnerability to execute unauthorized actions.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-13407.

Immediate Steps to Take

Disable access to the vulnerable page cgibin/ssi.cgi if possible.
Implement input validation and output encoding to prevent XSS attacks.
Regularly monitor and update the firmware to patch known vulnerabilities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators about safe browsing practices and the risks of clicking on unknown links.

Patching and Updates

Apply patches and updates provided by the vendor to address the XSS vulnerability in Advan VD-1 firmware versions.