CVE-2007-2708 in News-Script
Summary
by MITRE
PHP remote file inclusion vulnerability in newsadmin.php in Feindt Computerservice News (News-Script) 2.0 allows remote attackers to execute arbitrary PHP code via a URL in the action parameter.
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Analysis
by VulDB Data Team • 09/15/2024
The vulnerability identified as CVE-2007-2708 represents a critical remote file inclusion flaw within the Feindt Computerservice News (News-Script) version 2.0 web application. This issue resides in the newsadmin.php file where improper input validation allows malicious actors to inject arbitrary URLs into the action parameter, creating a pathway for remote code execution. The vulnerability operates at the intersection of insecure input handling and dynamic code loading mechanisms that are commonly found in legacy web applications. Such flaws typically emerge when developers fail to properly sanitize user-supplied data before using it in file inclusion operations, creating opportunities for attackers to manipulate application behavior through crafted input sequences.
The technical implementation of this vulnerability stems from the application's failure to validate or sanitize the action parameter before incorporating it into file inclusion operations. When a user submits a request containing a malicious URL in the action parameter, the newsadmin.php script processes this input without adequate sanitization measures, allowing the application to attempt to include and execute the remote file. This pattern aligns with CWE-98, which specifically addresses the inclusion of code from untrusted sources, and represents a classic example of a remote file inclusion vulnerability that has plagued web applications for over a decade. The vulnerability demonstrates how insufficient input validation can transform legitimate application functionality into a weapon for code execution, as the application treats user-provided URLs as trusted sources for file inclusion operations.
The operational impact of this vulnerability extends beyond simple code execution capabilities, as it enables attackers to gain full control over the affected web server. Remote attackers can leverage this flaw to upload and execute malicious PHP scripts, potentially leading to complete system compromise, data exfiltration, and persistent access. The vulnerability's remote nature means that attackers do not require physical access or prior authentication to exploit the flaw, making it particularly dangerous in production environments. From an attacker's perspective, this vulnerability fits squarely within the MITRE ATT&CK framework's execution phase, specifically under techniques related to remote code execution and command and control operations. The threat landscape surrounding such vulnerabilities often includes automated scanning tools that specifically target known patterns of remote file inclusion flaws, making applications with these issues particularly attractive targets for mass exploitation campaigns.
Mitigation strategies for CVE-2007-2708 must address both immediate remediation and long-term architectural improvements to prevent similar issues from occurring in future development cycles. The most effective immediate solution involves implementing strict input validation and sanitization for all user-supplied parameters, particularly those used in file inclusion operations. Developers should employ whitelisting approaches that only permit known good values rather than attempting to filter out malicious content, as the latter approach is inherently flawed and can be bypassed through various techniques. Additionally, disabling remote file inclusion capabilities entirely through PHP configuration settings, such as setting allow_url_fopen and allow_url_include to false, provides an additional layer of defense. The vulnerability also highlights the importance of following secure coding practices and conducting regular security assessments to identify and remediate similar issues before they can be exploited in production environments, aligning with industry standards that emphasize prevention through proper input validation and secure development lifecycle practices.