CVE-2007-0508 in BBClone
Summary
by MITRE
PHP remote file inclusion vulnerability in lib/selectlang.php in BBClone 0.31 allows remote attackers to execute arbitrary PHP code via a URL in the BBC_LANGUAGE_PATH parameter.
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Analysis
by VulDB Data Team • 08/19/2024
The CVE-2007-0508 vulnerability represents a critical remote file inclusion flaw in the BBClone web analytics tool version 0.31, specifically within the lib/selectlang.php component. This vulnerability stems from improper input validation and sanitization mechanisms that fail to adequately restrict user-supplied data before it is processed in a file inclusion context. The flaw exists in the BBC_LANGUAGE_PATH parameter which is directly influenced by external input without proper validation, creating an avenue for malicious actors to inject arbitrary URLs that point to remote malicious code repositories.
The technical implementation of this vulnerability follows a classic remote file inclusion pattern where the application accepts user input and directly incorporates it into file inclusion operations. When the BBClone application processes the BBC_LANGUAGE_PATH parameter, it does not properly validate or sanitize the input before using it in a require or include statement. This allows attackers to manipulate the parameter to point to remote web servers hosting malicious PHP scripts, effectively enabling remote code execution on the target system. The vulnerability is categorized under CWE-88 due to improper neutralization of special elements used in SQL commands, though more specifically it aligns with CWE-94 which addresses improper validation of critical input during dynamic code generation.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with complete control over the affected web server. Once exploited, malicious actors can upload additional backdoors, establish persistent access, or perform data exfiltration from the compromised system. The vulnerability affects web servers running BBClone 0.31 and is particularly dangerous in environments where the application is accessible to unauthenticated users. The attack surface is broad since the vulnerability can be exploited through any method that allows modification of the BBC_LANGUAGE_PATH parameter, including direct URL manipulation or through web application input fields.
From a threat modeling perspective, this vulnerability maps directly to ATT&CK technique T1190 for exploitation of remote services and T1059 for execution through command and scripting interpreters. The vulnerability demonstrates a fundamental flaw in input validation practices and highlights the importance of implementing proper sanitization mechanisms for all user-supplied data. Organizations should consider implementing web application firewalls to detect and block suspicious URL patterns targeting this vulnerability, while also ensuring that all web applications undergo regular security assessments to identify similar flaws. The remediation strategy involves either patching the affected BBClone version or implementing proper input validation that prevents the inclusion of external URLs in the language selection parameter. Additionally, security practitioners should enforce the principle of least privilege and implement proper network segmentation to limit the potential impact of successful exploitation attempts.