CVE-2006-7012 in scart
Summary
by MITRE
scart.cgi in SCart 2.0 allows remote attackers to execute arbitrary commands via shell metacharacters in the page parameter of a show_text action.
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Analysis
by VulDB Data Team • 07/01/2024
The vulnerability described in CVE-2006-7012 affects SCart 2.0, a web-based shopping cart system that was widely used in the mid-2000s for online commerce operations. This vulnerability exists within the scart.cgi script which serves as a core component of the application's functionality for displaying text content. The specific flaw manifests in how the application processes user input through the page parameter when executing a show_text action, creating a dangerous condition where attacker-controlled data can be interpreted as shell commands rather than simple text parameters.
The technical nature of this vulnerability represents a classic command injection flaw that falls under the CWE-77 category of Command Injection. The vulnerability occurs because the application fails to properly sanitize or escape user input before incorporating it into system commands or shell executions. When an attacker supplies shell metacharacters such as semicolons, ampersands, or backticks within the page parameter, these characters are interpreted by the underlying shell as command delimiters or operators rather than literal text. This allows malicious actors to append arbitrary commands that get executed with the privileges of the web server process, potentially leading to complete system compromise.
The operational impact of this vulnerability is severe and multifaceted, as it provides remote attackers with the capability to execute arbitrary code on the affected system without requiring authentication or prior access. Attackers can leverage this vulnerability to perform various malicious activities including but not limited to data exfiltration, system reconnaissance, privilege escalation, and deployment of additional malware. The vulnerability affects the confidentiality, integrity, and availability of the web application and underlying system, as it enables attackers to gain unauthorized access to sensitive information, modify system configurations, and potentially disrupt services. This type of vulnerability is particularly dangerous in web applications where the web server typically operates with elevated privileges and may have access to database credentials, file system resources, and network connectivity.
From a cybersecurity perspective, this vulnerability aligns with tactics and techniques documented in the MITRE ATT&CK framework, specifically mapping to the command and control phases where adversaries establish persistent access and execute malicious commands. The vulnerability also demonstrates characteristics of privilege escalation and lateral movement techniques that attackers often employ after initial compromise. Organizations should implement immediate mitigations including input validation, parameter sanitization, and proper output encoding to prevent shell metacharacters from being processed as commands. Additionally, the use of web application firewalls, regular security audits, and application patch management are essential controls to address this type of vulnerability. The vulnerability serves as a critical reminder of the importance of secure coding practices and the necessity of validating all user inputs to prevent injection attacks that can lead to complete system compromise.