CVE-2007-0134 in iG Shop
Summary
by MITRE
Multiple eval injection vulnerabilities in iGeneric iG Shop 1.0 allow remote attackers to execute arbitrary code via the action parameter, which is supplied to an eval function call in (1) cart.php and (2) page.php. NOTE: a later report and CVE analysis indicate that the vulnerability is present in 1.4.
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Analysis
by VulDB Data Team • 08/16/2024
The vulnerability described in CVE-2007-0134 represents a critical server-side code injection flaw in the iGeneric iG Shop 1.0 e-commerce platform that enables remote attackers to execute arbitrary code on the affected system. This vulnerability stems from improper input validation and sanitization mechanisms within the application's core functionality, specifically in two key files: cart.php and page.php. The flaw manifests when user-supplied input is directly passed to an eval function call without adequate security measures, creating a pathway for malicious actors to inject and execute arbitrary PHP code on the server.
The technical implementation of this vulnerability aligns with CWE-94, which categorizes improper validation of dangerous data in interpreted languages, specifically targeting the dangerous use of eval functions. When attackers manipulate the action parameter through HTTP requests, they can inject malicious payloads that get processed by the eval function, effectively bypassing normal application security controls. This type of vulnerability falls under the ATT&CK framework's T1059.007 technique, which covers scripting languages such as PHP, where adversaries leverage interpreted code execution to gain unauthorized access and control over the target system. The eval function serves as the primary attack vector because it processes and executes arbitrary PHP code, making it one of the most dangerous functions in PHP applications when used with unsanitized input.
The operational impact of this vulnerability is severe and multifaceted, potentially allowing attackers to achieve complete system compromise. Remote code execution capabilities enable adversaries to install backdoors, escalate privileges, exfiltrate sensitive data, and establish persistent access to the compromised server. Given that this vulnerability affects core shopping cart and page functionality, attackers can manipulate the application's behavior to redirect users to malicious sites, steal customer information, or even use the compromised system as a launch point for further attacks within the network infrastructure. The presence of this vulnerability in multiple files increases the attack surface and makes detection more challenging for security monitoring systems.
The remediation approach for CVE-2007-0134 requires immediate implementation of proper input validation and sanitization measures throughout the application codebase. Organizations should replace all eval function calls with safer alternatives such as switch statements or proper function dispatching mechanisms. Input parameters must undergo strict validation using allowlists of acceptable values rather than relying on blacklists that can be bypassed. The application should implement proper output encoding and use parameterized queries or prepared statements to prevent code injection attacks. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection. Regular security code reviews and vulnerability assessments should be conducted to identify similar patterns in other parts of the application, as this vulnerability type often appears in legacy codebases where security practices were not adequately implemented. The vulnerability's presence in version 1.4 indicates that this was a persistent issue requiring comprehensive code restructuring rather than simple patching, emphasizing the need for architectural improvements in the application's security design.