CVE-2023-46213 : Security Advisory and Response

A detailed analysis of CVE-2023-46213, a Cross-site Scripting vulnerability impacting Splunk Enterprise and Splunk Cloud.

Understanding CVE-2023-46213

This CVE involves ineffective escaping in the "Show Syntax Highlighted" feature of Splunk Enterprise versions below 9.0.7 and 9.1.2, leading to unauthorized code execution in a user's web browser.

What is CVE-2023-46213?

The CVE-2023-46213 vulnerability, also known as Cross-site Scripting (XSS) on "Show Syntax Highlighted" View in Search Page, allows attackers to execute unauthorized code in a user's browser by exploiting ineffective escaping in Splunk Enterprise versions.

The Impact of CVE-2023-46213

The impact of this vulnerability is significant as it enables attackers to execute malicious code in the context of a legitimate user accessing the affected feature, potentially leading to data theft or manipulation.

Technical Details of CVE-2023-46213

This section provides insight into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

In Splunk Enterprise versions below 9.0.7 and 9.1.2, ineffective escaping in the "Show Syntax Highlighted" feature can result in the execution of unauthorized code in a user's web browser.

Affected Systems and Versions

Splunk Enterprise versions 9.0 and 9.1 are impacted by this vulnerability, specifically versions below 9.0.7 and 9.1.2. Splunk Cloud versions less than 9.1.2308 are also affected.

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious code through the "Show Syntax Highlighted" feature, allowing attackers to execute unauthorized scripts in the context of a user's browsing session.

Mitigation and Prevention

Understanding the immediate steps to take, practicing long-term security measures, and staying up-to-date with patches and updates are crucial in mitigating the risks associated with CVE-2023-46213.

Immediate Steps to Take

Users are advised to upgrade Splunk Enterprise to versions 9.0.7 or 9.1.2, and Splunk Cloud to a version equal to or greater than 9.1.2308 to mitigate the XSS vulnerability.

Long-Term Security Practices

Enforcing strict input validation, implementing content security policies, and conducting regular security audits can help prevent XSS attacks and safeguard against similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories from Splunk, apply patches promptly, and ensure that systems are regularly updated to address known vulnerabilities and enhance overall security posture.