CVE-2007-0795 in Portal Server
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in Wap Portal Server 1.x allow remote attackers to execute arbitrary PHP code via a URL in the language parameter to (1) index.php and (2) admin/index.php.
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Analysis
by VulDB Data Team • 10/13/2017
The vulnerability identified as CVE-2007-0795 represents a critical remote code execution flaw affecting Wap Portal Server version 1.x, specifically targeting PHP applications that fail to properly validate user input parameters. This issue manifests through multiple remote file inclusion vulnerabilities that permit attackers to inject malicious URLs into the language parameter of two key application endpoints. The vulnerability directly impacts the server's ability to sanitize input data, creating an attack surface where malicious actors can leverage the application's file inclusion mechanisms to execute arbitrary PHP code on the target system.
The technical exploitation of this vulnerability occurs through the manipulation of the language parameter in two primary files: index.php and admin/index.php. When these applications process user-supplied input without proper validation or sanitization, they become susceptible to including remote files that contain malicious PHP code. This type of vulnerability falls under the Common Weakness Enumeration category CWE-88, which describes improper neutralization of special elements used in an expression, specifically highlighting the dangerous practice of incorporating untrusted data into file inclusion operations. The flaw demonstrates a classic lack of input validation and output encoding practices that are fundamental to secure application development.
The operational impact of CVE-2007-0795 extends far beyond simple code execution, as it provides attackers with complete control over the affected server. Successful exploitation can lead to unauthorized access to sensitive data, modification of application content, and potential lateral movement within network environments. The vulnerability affects both front-end user interfaces and administrative panels, meaning that attackers can potentially gain access to privileged functions through the admin/index.php endpoint. This creates a significant risk for organizations relying on Wap Portal Server for web-based applications, as the attack surface includes both public-facing interfaces and backend administrative functionalities.
Security professionals should implement immediate mitigations including input validation, parameter sanitization, and the removal of dynamic file inclusion practices where possible. The vulnerability aligns with ATT&CK technique T1190, which describes exploiting vulnerabilities in remote services, and T1059, which covers command and scripting interpreter usage. Organizations must ensure that all user-supplied input parameters are properly validated and that the application does not accept URLs or file paths from untrusted sources. Additionally, implementing web application firewalls, disabling remote file inclusion in PHP configurations, and applying proper access controls to administrative interfaces can significantly reduce the risk of exploitation. The vulnerability serves as a reminder of the critical importance of secure coding practices and input validation in preventing remote code execution attacks that can compromise entire systems.