CVE-2017-6393 : Security Advisory and Response

A security flaw in NagVis 1.9b12 allows attackers to inject and execute unauthorized HTML and script code through a vulnerable website's context.

Understanding CVE-2017-6393

This CVE involves a vulnerability in NagVis 1.9b12 that enables attackers to execute malicious code through user input data.

What is CVE-2017-6393?

This CVE identifies a flaw in NagVis 1.9b12 where user input data is not properly filtered, allowing attackers to inject and execute unauthorized HTML and script code.

The Impact of CVE-2017-6393

The vulnerability permits attackers to execute arbitrary code within the context of the vulnerable website, potentially leading to various security breaches.

Technical Details of CVE-2017-6393

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue arises from inadequate filtration of user-supplied data passed to the "nagvis-master/share/userfiles/gadgets/std_table.php" URL, enabling attackers to execute arbitrary code.

Affected Systems and Versions

Product: NagVis 1.9b12
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers exploit the vulnerability by injecting malicious HTML and script code through the specified URL, gaining unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2017-6393 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by NagVis promptly.
Implement input validation mechanisms to filter user-supplied data.
Monitor and restrict access to vulnerable URLs.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security audits and penetration testing to identify and mitigate risks.
Educate users and administrators on secure coding practices and threat awareness.

Patching and Updates

NagVis users should install the latest patches and updates to mitigate the vulnerability and enhance system security.