CVE-2010-3468 in Sava CMS
Summary
by MITRE
Directory traversal vulnerability in fileManager.cfc in Mura CMS 5.1 before 5.1.498 and 5.2 before 5.2.2809, and Sava CMS 5 through 5.2, allows remote attackers to read arbitrary files via a .. (dot dot) in the FILEID parameter to the default URI under tasks/render/file/.
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Analysis
by VulDB Data Team • 08/26/2024
This directory traversal vulnerability exists in Mura CMS and Sava CMS implementations where the fileManager.cfc component fails to properly validate user input containing directory traversal sequences. The flaw specifically affects versions prior to 5.1.498 for Mura CMS 5.1 and 5.2.2809 for Mura CMS 5.2, as well as Sava CMS versions 5 through 5.2. Attackers can exploit this weakness by manipulating the FILEID parameter in the URI path tasks/render/file/ to include .. (dot dot) sequences that navigate outside the intended directory structure. The vulnerability stems from insufficient input sanitization and path validation mechanisms that allow malicious users to traverse the file system and access unauthorized files. This type of vulnerability maps directly to CWE-22 - Improper Limitation of a Pathname to a Restricted Directory and aligns with ATT&CK technique T1083 - File and Directory Discovery, as it enables attackers to explore the system's file structure. The impact of this vulnerability extends beyond simple information disclosure, as it can potentially lead to sensitive data exposure including configuration files, database credentials, and application source code that may contain additional vulnerabilities.
The technical exploitation of this vulnerability occurs when the application processes user-supplied FILEID values without proper validation, allowing the .. sequences to be interpreted as directory navigation commands. When the system attempts to resolve the file path, it processes the traversal sequences and accesses files outside the intended directory boundaries. This creates a situation where an attacker can request files such as /etc/passwd, application configuration files, or database connection strings by crafting malicious URI requests that leverage the directory traversal mechanism. The vulnerability is particularly dangerous because it can be exploited remotely without requiring authentication, making it a critical security flaw that can be easily discovered and exploited by automated scanning tools. The attack surface is broad since it affects multiple versions of both Mura CMS and Sava CMS, indicating a widespread issue in the affected software implementations. This vulnerability type also commonly maps to ATT&CK tactic TA0007 - Discovery, as it enables attackers to gather intelligence about the target system's file structure and potentially identify additional attack vectors.
Organizations using affected CMS versions should prioritize immediate patching to address this vulnerability, as it represents a significant risk to system security and data integrity. The recommended mitigation strategy involves applying the vendor-provided patches that implement proper input validation and path sanitization measures. System administrators should also consider implementing additional security controls such as web application firewalls that can detect and block directory traversal attempts, as well as monitoring for unusual file access patterns that may indicate exploitation attempts. Network segmentation and principle of least privilege access controls can help limit the potential damage from successful exploitation by restricting access to sensitive files and directories. Security teams should also conduct thorough vulnerability assessments to identify any other potentially affected components within the CMS ecosystem, as this vulnerability may indicate broader security implementation gaps that could lead to additional attack vectors. The remediation process should include validating that all user inputs are properly sanitized and that file system access is strictly limited to authorized directories, implementing proper access controls, and establishing continuous monitoring for suspicious file access patterns that could indicate exploitation attempts.