CVE-2009-2183 in Campsite
Summary
by MITRE
Directory traversal vulnerability in admin-files/ad.php in Campsite 3.3.0 RC1 allows remote attackers to read and possibly execute arbitrary local files via a .. (dot dot) in the GLOBALS[g_campsiteDir] parameter.
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Analysis
by VulDB Data Team • 03/03/2025
The vulnerability described in CVE-2009-2183 represents a critical directory traversal flaw within the Campsite content management system version 3.3.0 RC1. This security weakness exists in the admin-files/ad.php component where improper input validation allows malicious actors to manipulate file paths through the GLOBALS[g_campsiteDir] parameter. The vulnerability specifically leverages the .. (dot dot) sequence to navigate upward through the directory structure, enabling unauthorized access to files outside the intended web root directory. Such directory traversal vulnerabilities are classified under CWE-22 as improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious request containing the .. sequence within the GLOBALS[g_campsiteDir] parameter value. This manipulation allows the application to interpret the request as attempting to access files in parent directories, potentially leading to the disclosure of sensitive system files, configuration data, or even execution of arbitrary code depending on the server configuration and file permissions. The vulnerability demonstrates a fundamental lack of proper input sanitization and path validation mechanisms within the Campsite application's administrative interface. Attackers can leverage this weakness to read system files that should remain protected, including but not limited to database configuration files, user credentials, or application source code that could reveal additional attack vectors.
From an operational perspective, this vulnerability poses significant risks to organizations using Campsite 3.3.0 RC1 as it enables remote code execution and information disclosure capabilities. The impact extends beyond simple file reading to potentially allow attackers to escalate privileges, access administrative functions, or gain deeper system access. This vulnerability aligns with several techniques documented in the MITRE ATT&CK framework under the T1059 category for command and scripting interpreter, as well as T1083 for file and directory discovery, where attackers can systematically explore the file system to identify valuable targets. Organizations running this vulnerable version of Campsite face potential data breaches, system compromise, and unauthorized access to sensitive content management resources that could affect their digital infrastructure security posture.
The recommended mitigation strategies for CVE-2009-2183 include immediate patching of the Campsite CMS to a version that addresses this directory traversal vulnerability, as well as implementing proper input validation and sanitization measures within the application code. Organizations should deploy web application firewalls that can detect and block directory traversal attempts, enforce strict file access controls, and implement proper parameter validation for all user-supplied inputs. Additionally, system administrators should conduct comprehensive security audits to identify and remediate similar vulnerabilities across other applications, as this type of flaw often indicates broader security gaps in input handling and access control mechanisms. The vulnerability underscores the importance of following secure coding practices and adhering to security standards such as those outlined in the OWASP Top Ten project to prevent similar issues in web applications.