CVE-2007-1013 in Htaccess Passwort Generator
Summary
by MITRE
PHP remote file inclusion vulnerability in generate.php in VirtualSystem Htaccess Passwort Generator 1.1 allows remote attackers to execute arbitrary PHP code via a URL in the ht_pfad parameter.
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Analysis
by VulDB Data Team • 08/23/2024
The vulnerability identified as CVE-2007-1013 represents a critical remote file inclusion flaw within the VirtualSystem Htaccess Passwort Generator version 1.1 software. This vulnerability resides in the generate.php script which processes user input through the ht_pfad parameter, creating an attack vector that enables remote code execution. The flaw stems from insufficient input validation and sanitization mechanisms that fail to properly restrict user-supplied data before incorporating it into the application's file inclusion logic. Attackers can exploit this weakness by crafting malicious URLs and passing them through the ht_pfad parameter, thereby allowing arbitrary PHP code execution on the target server.
The technical implementation of this vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an OS command, and more specifically with CWE-94, which addresses the execution of arbitrary code or commands. The vulnerability operates under the principle of remote file inclusion where the application accepts user-controllable input and directly uses it in file inclusion operations without proper validation. This creates a scenario where an attacker can manipulate the application's behavior by injecting malicious file paths that point to remote resources controlled by the attacker. The flaw exists because the software does not properly validate or sanitize the ht_pfad parameter, allowing attackers to inject URLs that point to external malicious files.
From an operational impact perspective, this vulnerability presents a severe threat to system security as it allows remote attackers to execute arbitrary PHP code on the target server. An attacker can leverage this vulnerability to upload and execute malicious scripts, potentially gaining full control over the affected system. The attack can be executed without authentication, making it particularly dangerous in environments where the vulnerable application is publicly accessible. This vulnerability enables attackers to perform various malicious activities including data theft, system compromise, and establishing persistent access. The impact extends beyond immediate code execution to include potential privilege escalation, lateral movement within the network, and further exploitation of related systems.
The mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms. Organizations should immediately patch the affected software to the latest available version that addresses this flaw. Additionally, implementing proper parameter validation and sanitization techniques can prevent attackers from injecting malicious URLs into the ht_pfad parameter. Security measures should include disabling remote file inclusion features in PHP configurations, implementing proper access controls, and using allowlists for valid file paths. Network-level protections such as web application firewalls and intrusion prevention systems can also help detect and block malicious requests targeting this vulnerability. The remediation process should also include conducting thorough security assessments of similar applications and implementing secure coding practices that prevent similar vulnerabilities from occurring in future development cycles. This vulnerability serves as a critical reminder of the importance of input validation and secure coding practices in preventing remote code execution attacks that can lead to complete system compromise.