CVE-2017-11507 : Vulnerability Insights and Analysis

A vulnerability in Check_MK versions 1.2.8x before 1.2.8p25 and 1.4.0x before 1.4.0p9 allows for a cross-site scripting (XSS) attack, enabling an unauthenticated attacker to inject HTML or JavaScript code.

Understanding CVE-2017-11507

This CVE identifies a cross-site scripting vulnerability in specific versions of Check_MK.

What is CVE-2017-11507?

The vulnerability in Check_MK versions 1.2.8x before 1.2.8p25 and 1.4.0x before 1.4.0p9 allows attackers to inject unencoded HTML or JavaScript code using certain parameters.

The Impact of CVE-2017-11507

The vulnerability enables attackers to execute XSS attacks, potentially leading to unauthorized data access or manipulation.

Technical Details of CVE-2017-11507

This section provides technical insights into the CVE.

Vulnerability Description

The vulnerability in Check_MK versions 1.2.8x before 1.2.8p25 and 1.4.0x before 1.4.0p9 is a cross-site scripting (XSS) flaw that allows unauthenticated attackers to inject malicious code.

Affected Systems and Versions

Product: Check_MK
Vendor: Tenable
Affected Versions:
1.2.8x prior to 1.2.8p25
1.4.0x prior to 1.4.0p9

Exploitation Mechanism

Attackers exploit the output_format parameter and the username parameter of failed HTTP basic authentication attempts to inject unencoded HTML or JavaScript code.

Mitigation and Prevention

Protecting systems from CVE-2017-11507 is crucial to maintaining security.

Immediate Steps to Take

Apply vendor-supplied patches promptly.
Monitor for any unauthorized access or data manipulation.
Implement strict input validation to prevent XSS attacks.

Long-Term Security Practices

Regularly update and patch software to address vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate risks.

Patching and Updates

Tenable has released patches to address the vulnerability; ensure all affected systems are updated to the patched versions.