CVE-2008-0195 in WordPress
Summary
by MITRE
WordPress 2.0.11 and earlier allows remote attackers to obtain sensitive information via an empty value of the page parameter to certain PHP scripts under wp-admin/, which reveals the path in various error messages.
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Analysis
by VulDB Data Team • 09/14/2018
This vulnerability exists in WordPress versions 2.0.11 and earlier where improper input validation allows remote attackers to exploit a path disclosure issue through the page parameter in wp-admin PHP scripts. The flaw occurs when an attacker submits an empty value for the page parameter, causing the application to generate error messages that inadvertently expose the server's file system path structure. This type of information disclosure vulnerability falls under the category of CWE-200, which specifically addresses the exposure of sensitive information through error messages and debugging output.
The technical implementation of this vulnerability stems from the lack of proper parameter validation within WordPress's administrative interface scripts. When the page parameter receives an empty value, the PHP application fails to handle this edge case gracefully, resulting in the execution of error handling routines that include the absolute file path in their output. This path disclosure can reveal critical information about the server environment including directory structures, file locations, and potentially the operating system configuration. The vulnerability affects multiple PHP scripts located under the wp-admin/ directory, making it particularly dangerous as it can be exploited across various administrative functions.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed file paths can provide attackers with valuable reconnaissance data for subsequent attacks. An attacker with access to these paths could potentially identify the exact version of WordPress installed, the server configuration, and even determine if other applications or services are running on the same server. This information can significantly aid in crafting more targeted attacks, including exploitation of known vulnerabilities in specific WordPress versions or related software components. The vulnerability represents a classic case of poor input sanitization and error handling that aligns with ATT&CK technique T1083 for discovering system information and T1068 for exploit development.
Security professionals should consider this vulnerability as part of a broader attack chain where initial reconnaissance leads to more sophisticated exploitation attempts. The path disclosure can be leveraged alongside other vulnerabilities to bypass security controls or to craft more effective attacks against the WordPress installation. Organizations should implement immediate mitigations including upgrading to WordPress version 2.0.12 or later, which contains the necessary patches to address this issue. Additionally, proper input validation should be enforced at all entry points, and error messages should be sanitized to prevent the exposure of internal system information. The vulnerability demonstrates the critical importance of secure coding practices and proper error handling in web applications, particularly in administrative interfaces where sensitive operations occur.