CVE-2007-2969 in WAnewsletter
Summary
by MITRE
PHP remote file inclusion vulnerability in newsletter.php in WAnewsletter 2.1.3 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the waroot parameter.
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Analysis
by VulDB Data Team • 09/19/2024
The vulnerability identified as CVE-2007-2969 represents a critical remote file inclusion flaw in the WAnewsletter 2.1.3 software and earlier versions. This issue resides within the newsletter.php script where the application fails to properly validate user input before incorporating it into file operations. The vulnerability specifically affects the waroot parameter which is used to define the root directory for the application's operations. When an attacker can manipulate this parameter with a malicious URL, the application executes arbitrary PHP code, effectively allowing complete remote code execution on the affected server. This type of vulnerability falls under the category of insecure direct object references and represents a classic example of how improper input validation can lead to severe security breaches.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL and passes it through the waroot parameter in the newsletter.php script. The application processes this input without adequate sanitization or validation, allowing the attacker to include remote files containing malicious PHP code. This creates an environment where attackers can execute arbitrary commands on the target server with the privileges of the web application. The vulnerability is particularly dangerous because it enables attackers to bypass traditional security measures and gain unauthorized access to the system. According to CWE standards, this corresponds to CWE-98, which describes improper direct object reference, and CWE-88, which addresses improper neutralization of special elements used in an OS command. The vulnerability aligns with ATT&CK technique T1190, which covers exploitation of remote services, and T1059, which involves execution through command and scripting interpreters.
The operational impact of this vulnerability is severe and far-reaching for organizations using affected versions of WAnewsletter. Successful exploitation allows attackers to execute malicious code, potentially leading to complete system compromise, data exfiltration, and persistence within the network. The vulnerability affects not only the web application itself but can also provide attackers with a foothold for further lateral movement and escalation of privileges. Organizations may experience unauthorized access to sensitive data, modification of web content, and potential use of the compromised server for launching attacks against other systems. The vulnerability is particularly concerning because it requires minimal skill to exploit and can be automated, making it attractive to both skilled and unskilled attackers. The impact extends beyond immediate system compromise to include potential regulatory compliance violations and damage to organizational reputation.
Mitigation strategies for CVE-2007-2969 must address both immediate remediation and long-term security improvements. The most effective immediate solution involves upgrading to a patched version of WAnewsletter that properly validates and sanitizes the waroot parameter input. Organizations should also implement input validation controls that reject malicious URLs and enforce proper parameter sanitization before any file operations occur. Network-based mitigations include implementing web application firewalls that can detect and block suspicious parameter values, as well as restricting external access to vulnerable applications. Security practices should include disabling remote file inclusion features in PHP configurations and implementing proper access controls for application files. Additionally, organizations should conduct regular security assessments and vulnerability scanning to identify similar issues in other applications. The remediation process should also include monitoring for exploitation attempts and implementing proper logging and alerting mechanisms to detect unauthorized access attempts. According to industry best practices and ATT&CK framework recommendations, organizations should also establish secure coding practices that prevent similar vulnerabilities from occurring in future development efforts.