CVE-2006-1746 in PHPList
Summary
by MITRE
Directory traversal vulnerability in PHPList 2.10.2 and earlier allows remote attackers include arbitrary local files via the (1) GLOBALS[database_module] or (2) GLOBALS[language_module] parameters, which overwrite the underlying $GLOBALS variable.
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Analysis
by VulDB Data Team • 06/16/2019
This vulnerability exists in PHPList version 2.10.2 and earlier, representing a critical directory traversal flaw that enables remote attackers to execute arbitrary file inclusion attacks. The vulnerability stems from improper input validation and sanitization within the application's parameter handling mechanisms. Attackers can manipulate the GLOBALS[database_module] or GLOBALS[language_module] parameters to overwrite the underlying $GLOBALS variable, creating a pathway for unauthorized code execution and potential system compromise.
The technical exploitation occurs through manipulation of global variables that control module loading within the PHPList application. When these parameters are not properly validated, they allow attackers to specify arbitrary local file paths that can be included and executed by the PHP interpreter. This represents a classic path traversal vulnerability that leverages the inherent flexibility of PHP's include/require functions to load and execute malicious code from unintended locations. The vulnerability is particularly dangerous because it operates at the global variable level, potentially affecting multiple application components and functions.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and data breach scenarios. An attacker who successfully exploits this vulnerability can gain unauthorized access to the underlying server, potentially leading to privilege escalation, data exfiltration, and persistent backdoor installation. The vulnerability allows for arbitrary file inclusion attacks that can result in full system control, making it a high-risk exposure for organizations relying on vulnerable PHPList installations. This type of vulnerability is particularly concerning in web applications where user input directly influences file inclusion operations.
Mitigation strategies for this vulnerability include immediate patching to the latest PHPList versions that address the directory traversal issue through proper input validation and sanitization. Organizations should implement comprehensive input validation measures that prevent manipulation of global variables and restrict file inclusion operations to predefined safe paths. The implementation of secure coding practices, including parameterized queries and restricted file access controls, can help prevent similar vulnerabilities from occurring in future deployments. Additionally, network segmentation and web application firewalls should be deployed to monitor and restrict access to potentially vulnerable application endpoints. This vulnerability aligns with CWE-22 directory traversal and CWE-94 code injection categories, and represents a technique commonly associated with attack patterns documented in the MITRE ATT&CK framework under initial access and execution phases.