CVE-2012-6447 in Splunk
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Splunk Web in Splunk 5.0.0 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 12/29/2024
The CVE-2012-6447 vulnerability represents a critical cross-site scripting flaw discovered in Splunk Web versions 5.0.0 through 5.0.2, exposing organizations to significant web application security risks. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. Splunk Web serves as the primary user interface for the Splunk platform, enabling users to search, analyze, and visualize data from various sources, making it a prime target for attackers seeking to compromise data integrity and user sessions. The vulnerability's presence in the web interface means that any authenticated user could potentially exploit this flaw to inject malicious scripts that execute in the context of other users' browsers, creating a severe threat to organizational security.
The technical nature of this vulnerability stems from insufficient input validation and output encoding mechanisms within Splunk Web's processing of user-supplied data. Attackers can leverage unspecified vectors to inject arbitrary web script or HTML code into the application's response, which then executes when other users view the affected pages. This type of vulnerability typically occurs when application components fail to properly sanitize user inputs before rendering them in web pages, allowing malicious payloads to bypass security controls and execute in the victim's browser context. The unspecified vectors suggest that multiple entry points within the Splunk Web interface could potentially be exploited, making the attack surface broader and more difficult to fully mitigate through simple input sanitization alone.
The operational impact of CVE-2012-6447 extends beyond simple script injection, as it provides attackers with potential access to sensitive organizational data and user sessions. When successful, this vulnerability could enable attackers to steal session cookies, redirect users to malicious sites, or execute arbitrary commands on behalf of authenticated users. The implications are particularly severe for Splunk environments where users may have elevated privileges or access to critical business data, as the vulnerability could be exploited to gain unauthorized access to sensitive information. Organizations relying on Splunk for log analysis and security monitoring face the additional risk that attackers could manipulate search results or data views to hide malicious activities or disrupt normal operations. The vulnerability also aligns with ATT&CK technique T1059.007 for Scripting and T1566.001 for Phishing, as attackers could use the compromised interface to conduct further social engineering campaigns or establish persistent access through malicious script delivery.
Organizations should immediately implement multiple layers of mitigation strategies to address this vulnerability, beginning with immediate patching to the latest Splunk versions that contain the necessary security fixes. The remediation process should include comprehensive input validation across all Splunk Web components and enhanced output encoding mechanisms to prevent script injection attempts. Security teams should also implement web application firewalls and content security policies to provide additional protection layers. Regular security assessments and penetration testing of Splunk environments are essential to identify similar vulnerabilities in other components, while user education regarding suspicious activities and phishing attempts can help prevent exploitation. The vulnerability serves as a reminder of the importance of maintaining up-to-date security practices and the critical need for continuous monitoring of security advisories, particularly for widely-used security platforms like Splunk that serve as central points of data access and analysis within organizations.