CVE-2008-6022 in Xnova
Summary
by MITRE
PHP remote file inclusion vulnerability in includes/todofleetcontrol.php in an older version of Xnova, possibly 0.8 sp1, allows remote attackers to execute arbitrary PHP code via a URL in the ugamela_root_path parameter.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 11/03/2024
The vulnerability identified as CVE-2008-6022 represents a critical remote file inclusion flaw within the Xnova gaming platform version 0.8 sp1 and potentially earlier releases. This vulnerability resides in the todofleetcontrol.php file located within the includes directory structure of the application. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly restrict user-supplied data from being directly incorporated into file inclusion operations. Attackers can exploit this weakness by manipulating the ugamela_root_path parameter to inject malicious URLs that point to remote servers hosting attacker-controlled PHP code.
The technical implementation of this vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an expression, and specifically manifests as a remote file inclusion vulnerability categorized under CWE-94. This flaw operates by accepting user input through the ugamela_root_path parameter without proper validation, allowing an attacker to specify arbitrary URLs that get processed by the application's include or require functions. When the application attempts to load the specified file path, it executes the remote PHP code, effectively granting the attacker remote code execution capabilities on the vulnerable system.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with complete control over the affected server environment. Successful exploitation enables attackers to upload additional malicious files, establish persistent backdoors, and potentially escalate privileges to gain administrative access to the entire platform. This vulnerability directly maps to ATT&CK technique T1190, which covers exploitation of remote services, and T1059, covering command and scripting interpreter usage. The attack surface is particularly concerning given that Xnova was a popular space-themed browser-based game platform, making it a target for malicious actors seeking to compromise gaming infrastructure and potentially use the compromised servers for further attacks.
Mitigation strategies for this vulnerability should focus on immediate patching of the affected application to the latest available version that contains proper input validation and sanitization. The recommended defensive measures include implementing strict input validation for all user-supplied parameters, particularly those used in file inclusion operations, and employing a whitelist-based approach to validate file paths. Additionally, the application should be configured to disable remote file inclusion features entirely and restrict file access permissions to prevent unauthorized code execution. Security practitioners should also implement network-based intrusion detection systems to monitor for suspicious traffic patterns and consider deploying web application firewalls to filter malicious requests targeting known vulnerability patterns. The vulnerability demonstrates the critical importance of input validation and proper parameter handling in preventing remote code execution attacks, making it a prime example of why defensive coding practices and regular security updates are essential for maintaining application integrity.