CVE-2018-19191 Explained : Impact and Mitigation

Webmin 1.890 has XSS vulnerabilities that can be exploited through various routes.

Understanding CVE-2018-19191

Webmin 1.890 is susceptible to XSS attacks through specific URLs within the application.

What is CVE-2018-19191?

This CVE identifies cross-site scripting (XSS) vulnerabilities present in Webmin 1.890, accessible through certain URLs in the application.

The Impact of CVE-2018-19191

These vulnerabilities can allow attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-19191

Webmin 1.890's XSS vulnerabilities are detailed below:

Vulnerability Description

XSS vulnerabilities exist in Webmin 1.890 through specific routes: /config.cgi?webmin, history parameter in /shell/index.cgi, /shell/index.cgi?stripped=1, or uall/mall parameter in /webminlog/search.cgi.

Affected Systems and Versions

Product: Webmin 1.890
Vendor: Webmin
Version: All versions are affected

Exploitation Mechanism

Attackers can exploit these vulnerabilities by injecting malicious scripts through the mentioned URLs, potentially compromising user data or executing unauthorized actions.

Mitigation and Prevention

To address CVE-2018-19191, consider the following steps:

Immediate Steps to Take

Disable or restrict access to the vulnerable URLs within Webmin.
Regularly monitor and audit user inputs and outputs to detect and prevent XSS attacks.

Long-Term Security Practices

Implement input validation and output encoding to mitigate XSS risks.
Educate users on safe browsing practices and the importance of avoiding suspicious links.

Patching and Updates

Apply patches or updates provided by Webmin to address and remediate the XSS vulnerabilities in version 1.890.