CVE-2007-3071 in eSellerate SDK
Summary
by MITRE
Buffer overflow in the GetWebStoreURL function in a certain ActiveX control in eSellerateControl365.dll 3.6.5.0 in eSellerate SDK allows user-assisted remote attackers to execute arbitrary code via a long first argument.
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Analysis
by VulDB Data Team • 07/20/2021
The vulnerability identified as CVE-2007-3071 represents a critical buffer overflow flaw within the eSellerate SDK ActiveX control component. This issue specifically affects the GetWebStoreURL function in the eSellerateControl365.dll library version 3.6.5.0, which is part of the broader eSellerate software development kit. The vulnerability operates through a user-assisted remote code execution vector, meaning that an attacker must convince a user to interact with a maliciously crafted web page or application for the exploit to succeed. The flaw stems from improper input validation within the ActiveX control, where the function fails to adequately check the length of the first argument passed to it, creating an exploitable buffer overflow condition.
The technical implementation of this vulnerability involves a classic stack-based buffer overflow scenario where the GetWebStoreURL function does not perform sufficient bounds checking on user-provided input. When a maliciously long string is passed as the first argument, it overflows the allocated buffer space, potentially overwriting adjacent memory locations including return addresses and function pointers. This memory corruption allows attackers to redirect program execution flow and ultimately execute arbitrary code with the privileges of the affected application. The vulnerability's classification aligns with CWE-121, which describes stack-based buffer overflow conditions, and CWE-787, which addresses out-of-bounds write vulnerabilities. The attack pattern follows the typical remote code execution methodology outlined in the MITRE ATT&CK framework under the technique T1059.007 for command and scripting interpreter, specifically targeting ActiveX components for exploitation.
The operational impact of this vulnerability extends beyond simple code execution, as it enables attackers to gain complete control over systems running vulnerable versions of the eSellerate SDK. The ActiveX control's integration into web browsers and applications creates a wide attack surface where a single compromised page can affect multiple users. The user-assisted nature of the attack requires social engineering elements but does not demand sophisticated exploitation techniques, making it particularly dangerous in enterprise environments where users may encounter malicious content through legitimate business processes. Organizations using eSellerate SDK components face significant risks including data breaches, system compromise, and potential lateral movement within their networks. The vulnerability's exploitation capability aligns with ATT&CK technique T1190 for exploitation of remote services, particularly when the vulnerable ActiveX control is embedded in web content.
Mitigation strategies for CVE-2007-3071 should focus on immediate remediation through patching the affected eSellerate SDK components to version 3.6.5.1 or later, which contains the necessary buffer overflow protections. Organizations should implement strict ActiveX control restrictions through browser security policies and group policies to prevent automatic execution of potentially malicious components. Network segmentation and application whitelisting can further reduce the attack surface by limiting which systems can execute the vulnerable ActiveX controls. Security monitoring should include detection of suspicious ActiveX control usage patterns and anomalous network behavior that might indicate exploitation attempts. The vulnerability demonstrates the importance of proper input validation and memory safety practices in software development, particularly for components that interact with untrusted user input. Organizations should also consider implementing web application firewalls and content filtering solutions to block malicious content that might attempt to exploit this and similar vulnerabilities. Regular security assessments and vulnerability scanning should specifically target ActiveX controls and legacy software components to identify and remediate similar issues before they can be exploited by attackers.