CVE-2006-2834 in gnopaste
Summary
by MITRE
PHP remote file inclusion vulnerability in includes/common.php in gnopaste 0.5.3 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the root_path parameter.
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Analysis
by VulDB Data Team • 06/29/2024
The vulnerability identified as CVE-2006-2834 represents a critical remote file inclusion flaw in the gnopaste web application version 0.5.3 and earlier. This vulnerability exists within the includes/common.php file where the application fails to properly validate or sanitize user-supplied input parameters. The specific weakness lies in how the application processes the root_path parameter, which is directly incorporated into file inclusion operations without adequate security controls. This flaw falls under the category of insecure direct object reference and remote code execution vulnerabilities, making it particularly dangerous for attackers seeking to compromise affected systems.
The technical implementation of this vulnerability allows attackers to manipulate the root_path parameter through HTTP requests, enabling them to inject malicious URLs that point to remote servers hosting malicious PHP code. When the application processes this parameter, it performs a file inclusion operation that executes the attacker-controlled code on the target server. This type of vulnerability is classified as CWE-98 and CWE-88 within the Common Weakness Enumeration framework, representing weaknesses in the direct inclusion of files from untrusted sources. The vulnerability operates at the application layer and can be exploited through standard web request mechanisms, making it accessible to attackers with minimal technical expertise.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to gain full control over the affected web server. Once exploited, attackers can upload additional malicious files, establish persistent backdoors, and potentially escalate privileges to access underlying system resources. The vulnerability affects the confidentiality, integrity, and availability of the affected system, as it allows unauthorized access to sensitive data and can be used to disrupt service availability. This weakness also provides attackers with the opportunity to use the compromised server as a platform for further attacks against other systems within the network infrastructure.
Mitigation strategies for CVE-2006-2834 should focus on immediate patching of the affected gnopaste application to version 0.5.4 or later, which contains the necessary security fixes. Organizations should implement input validation and sanitization measures to ensure that all user-supplied parameters are properly validated before being used in file inclusion operations. The principle of least privilege should be applied by restricting file inclusion capabilities to only trusted sources and implementing proper access controls. Network segmentation and intrusion detection systems can help monitor for exploitation attempts, while regular security assessments should be conducted to identify similar vulnerabilities in other applications. This vulnerability aligns with tactics described in the MITRE ATT&CK framework under the execution and privilege escalation domains, emphasizing the importance of proactive security measures and regular vulnerability management processes to prevent exploitation of such critical flaws.