CVE-2006-0125 in appserv
Summary
by MITRE
Unspecified vulnerability in appserv/main.php in AppServ 2.4.5 allows remote attackers to include arbitrary files via the appserv_root parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information. There is not enough detail from these third party sources to know whether this is directory traversal, remote file include, or another issue.
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Analysis
by VulDB Data Team • 07/04/2025
The vulnerability identified as CVE-2006-0125 affects AppServ 2.4.5, specifically within the appserv/main.php script where an unspecified security flaw exists that permits remote attackers to execute arbitrary file inclusion attacks through manipulation of the appserv_root parameter. This type of vulnerability represents a critical security weakness that can potentially lead to complete system compromise when exploited properly. The ambiguity surrounding the exact nature of the vulnerability makes it particularly concerning as security professionals cannot definitively categorize whether this constitutes directory traversal, remote file inclusion, or another variant of insecure file handling.
The technical flaw manifests through improper input validation and sanitization of the appserv_root parameter, which allows malicious actors to inject arbitrary file paths or URLs into the application's file inclusion mechanism. When the application processes this parameter without adequate security controls, it can inadvertently execute code from remote locations or access local files that should remain protected. This vulnerability falls under the broader category of insecure direct object references and improper input validation, which are commonly exploited in web application attacks. The weakness enables attackers to bypass normal access controls and potentially gain unauthorized access to system resources or execute malicious code on the target server.
From an operational perspective, this vulnerability presents significant risk to organizations using AppServ 2.4.5 as it could allow remote code execution, data theft, or complete system compromise. Attackers could leverage this flaw to upload and execute malicious files, access sensitive configuration data, or establish persistent backdoors within the affected system. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access or prior authentication. This vulnerability aligns with attack patterns documented in the attack tree framework where initial access is gained through web application exploitation, leading to privilege escalation and lateral movement within the network infrastructure.
The impact of this vulnerability extends beyond immediate exploitation as it represents a fundamental flaw in the application's security architecture that could enable attackers to perform reconnaissance, establish persistent access, and conduct further attacks against the organization's network. Organizations utilizing this version of AppServ should consider implementing network segmentation, firewall rules to restrict access to the affected application, and immediate patching or mitigation strategies. Security controls should include input validation, output encoding, and regular security assessments to identify similar vulnerabilities in other applications within the attack surface. The vulnerability demonstrates the importance of proper parameter validation and input sanitization as outlined in the CWE catalog under categories related to insecure file handling and improper validation of input.
Mitigation strategies should include immediate patching of the affected AppServ version, implementation of web application firewalls to monitor and block suspicious file inclusion patterns, and comprehensive security reviews of all web applications to identify similar vulnerabilities. Organizations should also implement network monitoring to detect unusual file access patterns and establish incident response procedures for potential exploitation attempts. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date software versions and implementing robust security controls throughout the application lifecycle. Regular security assessments and penetration testing should be conducted to identify and remediate similar weaknesses in the organization's overall security posture.