CVE-2007-3702 in Mail Machine
Summary
by MITRE
Directory traversal vulnerability in the load function in cgi-bin/mail/mailmachine.cgi in Mail Machine 3.989 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the archives parameter in a Load action.
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Analysis
by VulDB Data Team • 09/25/2024
The vulnerability described in CVE-2007-3702 represents a classic directory traversal flaw that affects the Mail Machine 3.989 web application. This issue exists within the cgi-bin/mail/mailmachine.cgi script where the load function fails to properly validate user input parameters, specifically the archives parameter used in Load actions. The vulnerability stems from insufficient input sanitization that allows attackers to manipulate file paths through the use of directory traversal sequences such as .. (dot dot). This weakness enables unauthorized access to files outside the intended directory structure, potentially exposing sensitive system information or confidential data stored on the server.
The technical implementation of this vulnerability aligns with CWE-22, which categorizes directory traversal attacks as a fundamental security flaw in input validation. When an attacker submits a malicious archives parameter containing directory traversal sequences, the web application processes these inputs without adequate sanitization, allowing the request to access files in parent directories. The impact extends beyond simple file reading capabilities as it can potentially expose system configuration files, user credentials, or other sensitive data that should remain protected within the application's designated boundaries.
From an operational perspective, this vulnerability poses significant risks to organizations relying on Mail Machine versions 3.989 and earlier. Attackers can leverage this flaw to access arbitrary files on the server, potentially compromising the entire system's security posture. The vulnerability is particularly dangerous because it requires minimal effort to exploit and can lead to complete system compromise if sensitive files are accessible through the traversal mechanism. The attack vector is straightforward and does not require elevated privileges, making it a high-severity issue that can be exploited by both skilled and less experienced threat actors.
The exploitation of this vulnerability follows patterns consistent with ATT&CK technique T1083, which involves discovering system information through directory traversal attacks. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied parameters, particularly those used in file operations. The recommended mitigation strategies include upgrading to patched versions of Mail Machine, implementing proper parameter validation, and deploying web application firewalls that can detect and block directory traversal attempts. Additionally, principle of least privilege should be enforced by restricting file access permissions and ensuring that web applications operate with minimal required privileges to prevent escalation of compromised access.
Security teams should also consider implementing monitoring and logging mechanisms that can detect unusual file access patterns or directory traversal attempts. The vulnerability demonstrates the critical importance of input validation in web applications and serves as a reminder of the persistent nature of directory traversal attacks in legacy systems. Organizations maintaining older web applications should conduct thorough security assessments to identify similar vulnerabilities and ensure that proper security controls are in place to prevent unauthorized file access and system compromise.