CVE-2015-8565 in Joomla
Summary
by MITRE
Directory traversal vulnerability in Joomla! 3.2.0 through 3.3.x and 3.4.x before 3.4.6 allows remote attackers to have unspecified impact via unknown vectors.
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Analysis
by VulDB Data Team • 04/21/2019
The directory traversal vulnerability identified as CVE-2015-8565 represents a critical security flaw in Joomla! content management systems affecting versions 3.2.0 through 3.3.x and 3.4.x before 3.4.6. This vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw enables remote attackers to manipulate file paths in ways that were not intended by the application's developers, potentially allowing unauthorized access to sensitive system resources.
The technical nature of this vulnerability stems from insufficient input validation and sanitization within Joomla!'s file handling mechanisms. Attackers can exploit this weakness by crafting malicious requests that manipulate file path parameters, allowing them to traverse directories beyond the intended scope of the application. This typically occurs when user-supplied input is directly incorporated into file system operations without proper validation or encoding. The unspecified impact mentioned in the CVE description indicates that the vulnerability could potentially lead to various security consequences including arbitrary file access, file disclosure, or even remote code execution depending on the specific implementation and system configuration.
The operational impact of CVE-2015-8565 extends beyond simple unauthorized file access, as it represents a fundamental breakdown in the application's security model that could enable attackers to escalate privileges and gain deeper system access. Organizations running affected Joomla! versions face significant risk of data breaches, system compromise, and potential regulatory violations. The vulnerability's presence in multiple minor versions suggests it was a persistent flaw that required patching across several release cycles. Security professionals should note that directory traversal vulnerabilities often align with ATT&CK technique T1059.007 for command and scripting interpreter, as attackers may leverage such access to execute malicious code or establish persistence within compromised systems.
Mitigation strategies for CVE-2015-8565 primarily focus on immediate remediation through official security patches released by Joomla installations to versions 3.4.6 or later where this vulnerability has been addressed. Additionally, implementing proper input validation at multiple layers of the application architecture provides defense-in-depth protection. Network-level controls such as web application firewalls can help detect and block suspicious path traversal attempts, though these should not replace proper patching. Security teams should also conduct comprehensive vulnerability assessments to identify any potential exploitation attempts and ensure that all Joomla! installations within their environment are properly updated and monitored for similar vulnerabilities.