CVE-2007-4454 in Olatedownload
Summary
by MITRE
Eval injection vulnerability in environment.php in Olate Download (od) 3.4.1 allows context-dependent attackers to execute arbitrary code via a crafted version string, as referenced by the (1) PDO::ATTR_SERVER_VERSION or (2) PDO::ATTR_CLIENT_VERSION attribute.
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Analysis
by VulDB Data Team • 09/07/2018
The CVE-2007-4454 vulnerability represents a critical eval injection flaw in the Olate Download (od) 3.4.1 web application that specifically targets the environment.php file. This vulnerability operates within the context of PHP's PDO (PHP Data Objects) extension and exploits improper input validation when handling version attributes. The flaw manifests when the application processes database connection information through PDO::ATTR_SERVER_VERSION or PDO::ATTR_CLIENT_VERSION attributes, creating an avenue for malicious code execution.
This vulnerability falls under the CWE-94 category of Code Injection, specifically representing an eval injection attack vector. The technical implementation exploits the fact that the application directly incorporates user-supplied version strings into eval() statements without proper sanitization or validation. When attackers craft malicious version strings that contain executable PHP code, the application's environment.php file processes these inputs through eval() functions, resulting in arbitrary code execution on the target system. The context-dependent nature of this vulnerability means that exploitation requires specific conditions where the application is configured to process database connection details through these particular PDO attributes.
The operational impact of CVE-2007-4454 extends beyond simple code execution to encompass complete system compromise. Attackers who successfully exploit this vulnerability can execute arbitrary commands with the privileges of the web server process, potentially leading to full system takeover. The vulnerability's relevance in the ATT&CK framework maps to T1059.007 (Command and Scripting Interpreter: PowerShell) and T1068 (Exploitation for Privilege Escalation) techniques, as the initial code execution can be leveraged to escalate privileges or establish persistent access. Additionally, the vulnerability demonstrates characteristics of T1190 (Exploit Public-Facing Application) since it affects a web application component that is accessible over the network.
Mitigation strategies for CVE-2007-4454 require immediate patching of the Olate Download application to version 3.4.2 or later, which contains the necessary input validation fixes. Organizations should implement proper input sanitization measures by validating and filtering all user-supplied version strings before processing them through eval() functions. The implementation of principle of least privilege should restrict the web server's execution capabilities, and network segmentation should limit access to vulnerable application components. Security monitoring should include detection of unusual eval() function calls and suspicious version string patterns in application logs. Additionally, organizations should consider implementing Web Application Firewalls (WAF) rules to block known malicious patterns in version string parameters and conduct regular security assessments to identify similar injection vulnerabilities in other application components. The vulnerability also highlights the importance of avoiding eval() usage in production environments and implementing proper parameterized queries to prevent similar injection attacks across the application stack.