CVE-2008-1993 in Acidcat
Summary
by MITRE
Acidcat CMS 3.4.1 does not restrict access to the FCKEditor component, which allows remote attackers to upload arbitrary files.
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Analysis
by VulDB Data Team • 10/21/2024
The vulnerability identified as CVE-2008-1993 affects Acidcat CMS version 3.4.1 and represents a critical access control flaw that directly impacts the security posture of web applications utilizing this content management system. This issue stems from insufficient authorization mechanisms within the FCKEditor component, which is a widely used rich text editor for web applications. The flaw allows unauthenticated remote attackers to bypass normal access restrictions and upload arbitrary files to the target system, creating a significant attack surface that can be exploited for malicious purposes.
The technical implementation of this vulnerability resides in the inadequate input validation and access control mechanisms within the Acidcat CMS framework. The FCKEditor component, which should be restricted to authorized administrators, fails to properly verify user credentials or roles before permitting file upload operations. This misconfiguration creates a path for attackers to directly interact with the file upload functionality without proper authentication, effectively turning the editor into an unrestricted file upload interface. The vulnerability manifests when the application fails to enforce proper authorization checks on the upload endpoints, allowing any remote user to submit files regardless of their privileges.
The operational impact of this vulnerability extends far beyond simple unauthorized file uploads, as it provides attackers with a potential foothold for more sophisticated attacks within the target environment. Remote attackers can leverage this vulnerability to upload malicious files such as web shells, malware, or other exploit payloads that can be executed within the context of the web server. The implications include complete system compromise, data exfiltration, and potential lateral movement within network environments. This vulnerability directly aligns with CWE-285, which addresses improper authorization issues, and represents a clear violation of the principle of least privilege that should govern all web application components.
The attack vector for this vulnerability is particularly concerning as it requires no prior authentication or specialized knowledge of the system's internal workings. Attackers can simply navigate to the vulnerable upload endpoint and submit malicious files without needing to establish any credentials or exploit additional vulnerabilities. This makes the vulnerability highly exploitable and dangerous in environments where the CMS is publicly accessible. The attack can be executed through standard HTTP requests, making it difficult to detect and prevent without proper network monitoring and access control measures in place. Organizations using Acidcat CMS 3.4.1 should immediately implement mitigations including restricting access to the FCKEditor component, implementing proper authentication controls, and conducting comprehensive security audits of their web applications.
Security professionals should note that this vulnerability demonstrates the critical importance of implementing proper access control mechanisms for all web application components, particularly those with file upload capabilities. The flaw represents a fundamental security misconfiguration that violates core security principles and can lead to complete system compromise. Organizations should consider implementing network segmentation, web application firewalls, and regular security assessments to prevent similar issues from occurring in other components of their infrastructure. The vulnerability also underscores the need for regular security updates and patch management processes to address known issues before they can be exploited by malicious actors.