CVE-2017-7203 : Security Advisory and Response

ZoneMinder version 1.30.2 and earlier contain a Cross-Site Scripting (XSS) vulnerability due to inadequate filtering of user-supplied data. This flaw allows attackers to execute HTML and script code within the affected website's context.

Understanding CVE-2017-7203

This CVE involves a security vulnerability in ZoneMinder versions 1.30.2 and below, allowing for Cross-Site Scripting attacks.

What is CVE-2017-7203?

ZoneMinder version 1.30.2 and earlier are susceptible to a Cross-Site Scripting (XSS) vulnerability. The issue arises from insufficient filtering of user-supplied data, specifically in the postLoginQuery parameter used in a specific URL.

The Impact of CVE-2017-7203

Exploiting this vulnerability enables malicious actors to execute arbitrary HTML and script code within the context of the affected website, potentially leading to various security risks.

Technical Details of CVE-2017-7203

This section delves into the technical aspects of the CVE.

Vulnerability Description

The XSS vulnerability in ZoneMinder before version 1.30.2 stems from the lack of proper filtration of user-supplied data, particularly in the postLoginQuery parameter within a specific URL.

Affected Systems and Versions

Product: ZoneMinder
Vendor: N/A
Versions affected: 1.30.2 and earlier

Exploitation Mechanism

The vulnerability allows attackers to inject and execute HTML and script code within the website's context by manipulating the postLoginQuery parameter.

Mitigation and Prevention

Protecting systems from CVE-2017-7203 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update ZoneMinder to version 1.30.2 or later to mitigate the XSS vulnerability.
Implement input validation and output encoding to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and audit web application code for security vulnerabilities.
Educate developers on secure coding practices to prevent XSS and other injection attacks.

Patching and Updates

Apply security patches and updates provided by ZoneMinder to address known vulnerabilities and enhance system security.