CVE-2018-7432 : Vulnerability Insights and Analysis

Splunk Enterprise and Splunk Light versions are vulnerable to a denial of service attack through crafted HTTP requests.

Understanding CVE-2018-7432

This CVE involves a vulnerability in various versions of Splunk Enterprise and Splunk Light that could be exploited by remote attackers.

What is CVE-2018-7432?

Splunk Enterprise versions 6.2.x up to 6.2.14, 6.3.x up to 6.3.10, 6.4.x up to 6.4.7, and 6.5.x up to 6.5.3, as well as Splunk Light versions before 6.6.0, are susceptible to a denial of service attack via specially crafted HTTP requests.

The Impact of CVE-2018-7432

This vulnerability allows remote attackers to launch denial of service attacks on affected systems, potentially disrupting services and causing downtime.

Technical Details of CVE-2018-7432

The following details provide a deeper insight into the technical aspects of this CVE.

Vulnerability Description

The vulnerability in Splunk Enterprise and Splunk Light versions allows remote attackers to trigger denial of service attacks by sending specific HTTP requests.

Affected Systems and Versions

Splunk Enterprise 6.2.x to 6.2.14
Splunk Enterprise 6.3.x to 6.3.10
Splunk Enterprise 6.4.x to 6.4.7
Splunk Enterprise 6.5.x to 6.5.3
Splunk Light versions prior to 6.6.0

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending maliciously crafted HTTP requests to the affected Splunk Enterprise and Splunk Light versions.

Mitigation and Prevention

Protecting systems from CVE-2018-7432 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Monitor network traffic for any suspicious activity.
Implement firewall rules to restrict access to vulnerable systems.

Long-Term Security Practices

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

Patching and Updates

Splunk users should ensure they update to the latest versions that contain fixes for CVE-2018-7432.