CVE-2005-2289 in PHPCounter
Summary
by MITRE
PHPCounter 7.2 allows remote attackers to obtain sensitive information via a direct request to prelims.php, which reveals the path in an error message.
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Analysis
by VulDB Data Team • 07/10/2018
The vulnerability identified as CVE-2005-2289 affects PHPCounter 7.2, a web-based counter application that tracks website visits and user activity. This security flaw represents a classic information disclosure vulnerability that occurs when the application fails to properly handle error conditions, resulting in the exposure of sensitive system information to unauthorized parties. The vulnerability specifically manifests when attackers can directly access the prelims.php script, which contains a flaw in its error handling mechanism that inadvertently reveals the server path structure to remote attackers. This type of vulnerability falls under the category of information disclosure issues that can provide attackers with valuable reconnaissance data for subsequent attacks.
The technical implementation of this vulnerability stems from improper error message handling within the PHPCounter application. When the prelims.php script encounters an error condition, it generates an error message that includes the full server path where the application is installed. This occurs because the application does not sanitize error outputs or implement proper input validation before processing requests. The flaw is particularly concerning because it directly exposes the file system structure of the server hosting the PHPCounter application, potentially revealing directory paths, file names, and system configuration details that could be exploited for further attacks. From a cybersecurity perspective, this vulnerability aligns with CWE-200, which addresses the improper handling of error conditions that lead to information disclosure, and represents a fundamental weakness in the application's defensive programming practices.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with critical system information that can be leveraged for more sophisticated attacks. An attacker who successfully exploits this vulnerability gains knowledge of the server's file system structure, which can be used to plan targeted attacks against specific files or directories. This information disclosure can facilitate directory traversal attacks, privilege escalation attempts, or other exploitation techniques that rely on understanding the target system's architecture. The vulnerability is particularly dangerous because it requires minimal effort to exploit, as attackers only need to make a direct request to the vulnerable script to obtain the sensitive path information. This makes it an attractive target for automated scanning tools and opportunistic attackers who are looking to gather intelligence before launching more complex attacks. The exposure of system paths can also reveal the application's version, installation location, and potentially other configuration details that may be useful in crafting targeted exploits.
Mitigation strategies for this vulnerability should focus on implementing proper error handling and input validation within the PHPCounter application. The most effective approach involves modifying the prelims.php script to suppress or sanitize error messages before they are displayed to users, ensuring that no system paths or internal application details are revealed. Organizations should also implement proper logging mechanisms to detect and respond to unauthorized access attempts, while applying the latest security patches and updates to the PHPCounter application. Additionally, implementing network-level protections such as web application firewalls can help detect and block direct access attempts to vulnerable scripts. The remediation process should include comprehensive security testing to ensure that error messages no longer reveal sensitive system information, and regular security audits to identify similar vulnerabilities in other applications. From an ATT&CK framework perspective, this vulnerability relates to techniques involving reconnaissance and information gathering, specifically the collection of system information that can be used to plan more sophisticated attacks. Organizations should also consider implementing principle of least privilege access controls and regular security assessments to prevent similar vulnerabilities from being introduced in future versions of the application.