CVE-2023-40592 : Vulnerability Insights and Analysis

Understanding CVE-2023-40592

This CVE-2023-40592 involves a reflected cross-site scripting (XSS) vulnerability in the "/app/search/table" web endpoint of Splunk Enterprise versions below 9.1.1, 9.0.6, and 8.2.12. This vulnerability can potentially allow an attacker to execute arbitrary commands on the Splunk platform instance.

What is CVE-2023-40592?

In Splunk Enterprise versions below 9.1.1, 9.0.6, and 8.2.12, an attacker can exploit a special web request to create reflected cross-site scripting (XSS) on the "/app/search/table" web endpoint. This exploitation can result in the execution of arbitrary commands on the Splunk platform instance.

The Impact of CVE-2023-40592

The impact of this vulnerability is rated as HIGH with a CVSS v3.1 base score of 8.4. The vulnerability can lead to significant harm by allowing attackers to execute malicious commands on the affected Splunk platform, potentially compromising sensitive data or resources.

Technical Details of CVE-2023-40592

This section provides specific technical details about the vulnerability.

Vulnerability Description

The vulnerability exists in Splunk Enterprise versions below 9.1.1, 9.0.6, and 8.2.12, where an attacker can manipulate a web request to inject and execute arbitrary commands through the "/app/search/table" web endpoint.

Affected Systems and Versions

The affected systems are Splunk Enterprise versions less than 9.1.1, 9.0.6, and 8.2.12. Splunk Cloud version less than 9.0.2305.200 is also impacted by this vulnerability.

Exploitation Mechanism

By sending a crafted web request to the "/app/search/table" web endpoint, attackers can trigger the execution of arbitrary commands on the Splunk platform instance.

Mitigation and Prevention

To address CVE-2023-40592, certain steps can be taken to mitigate the risk of exploitation and enhance overall security.

Immediate Steps to Take

Upgrade Splunk Enterprise to versions 9.1.1, 9.0.6, or 8.2.12 to eliminate the vulnerability.
Implement strict input validation and filtering mechanisms to prevent XSS attacks.

Long-Term Security Practices

Regularly update and patch Splunk software to protect against known vulnerabilities.
Conduct security training for developers to increase awareness of secure coding practices.

Patching and Updates

Stay informed about security advisories and updates from Splunk to quickly apply patches that address vulnerabilities.