CVE-2007-3460 in EVA-Web
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in index.php3 in EVA-Web 1.1 through 2.2 allow remote attackers to execute arbitrary PHP code via a URL in the (1) aide or (2) perso parameter.
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Analysis
by VulDB Data Team • 09/23/2024
The vulnerability identified as CVE-2007-3460 represents a critical remote file inclusion flaw affecting EVA-Web versions 1.1 through 2.2. This issue manifests in the index.php3 script where improper input validation allows attackers to inject malicious URLs through two specific parameters named aide and perso. The vulnerability falls under the category of CWE-88, which describes improper neutralization of special elements used in an OS command, though in this case the malicious input is directed toward PHP file inclusion rather than OS commands. The flaw enables attackers to manipulate the application's behavior by injecting external URLs that get processed as PHP code, creating a pathway for arbitrary code execution on the vulnerable server.
The technical implementation of this vulnerability exploits the lack of proper parameter sanitization in the EVA-Web application's index.php3 file. When the aide or perso parameters are passed to the script, the application directly incorporates these values into file inclusion operations without adequate validation or sanitization. This creates an environment where an attacker can supply a URL pointing to malicious PHP code hosted on a remote server, effectively allowing the vulnerable application to download and execute that code in the context of the web server. The vulnerability demonstrates poor input validation practices and highlights the dangers of dynamic file inclusion without proper security controls.
From an operational perspective, this vulnerability poses significant risks to systems running affected EVA-Web versions. Attackers can leverage this flaw to gain unauthorized access to the web server, potentially leading to complete system compromise, data theft, or the installation of backdoors. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring local access or prior authentication. This vulnerability directly maps to ATT&CK technique T1190, which describes exploitation of remote services, and represents a classic example of how insecure file inclusion patterns can lead to full system compromise. The impact extends beyond immediate code execution to include potential privilege escalation and lateral movement within network environments.
Mitigation strategies for CVE-2007-3460 require immediate action to address the root cause of the vulnerability. The primary solution involves implementing strict input validation and sanitization for all user-supplied parameters before they are used in file inclusion operations. Organizations should disable the use of remote file inclusion entirely by configuring PHP settings to restrict file access to local resources only. The recommended approach includes implementing whitelisting mechanisms for parameter values, using absolute paths for file operations, and applying the principle of least privilege when configuring web server permissions. Additionally, regular security audits should be conducted to identify similar patterns in other applications, as this vulnerability type remains prevalent in legacy systems. System administrators should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability pattern.