CVE-2007-3203 in 602Pro LAN SUITE
Summary
by MITRE
Stack-based buffer overflow in smtpdll.dll in the SMTP service in 602Pro LAN SUITE 2003 2003.0.03.0828 allows remote attackers to execute arbitrary code via an e-mail message with a long address. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 11/27/2024
The vulnerability identified as CVE-2007-3203 represents a critical stack-based buffer overflow flaw within the smtpdll.dll component of the 602Pro LAN SUITE 2003 email service. This security weakness resides in the SMTP service implementation and specifically affects the handling of email addresses during message processing. The vulnerability manifests when the system receives an email message containing an excessively long address field, which triggers the buffer overflow condition in the memory stack. The flaw falls under CWE-121 Stack-based Buffer Overflow, a well-documented category that represents a significant security risk due to the potential for arbitrary code execution. This vulnerability type is particularly dangerous because it allows attackers to overwrite adjacent memory locations and potentially manipulate program execution flow.
The technical exploitation of this vulnerability occurs through the manipulation of email address fields in transmitted messages. When an attacker crafts an email with an address field that exceeds the allocated buffer size in smtpdll.dll, the overflow causes adjacent memory to be overwritten with attacker-controlled data. This memory corruption can lead to the execution of arbitrary code within the context of the SMTP service process. The attack vector is remote, meaning that an attacker does not need physical access to the system to exploit this vulnerability. The vulnerability's impact is particularly severe because the SMTP service typically runs with elevated privileges, potentially allowing successful exploitation to result in complete system compromise. The ATT&CK framework would classify this as a code injection technique with potential for privilege escalation and persistence mechanisms.
The operational impact of this vulnerability extends beyond simple code execution, as it represents a fundamental flaw in the email processing infrastructure of the 602Pro LAN SUITE 2003. Organizations relying on this software for email communication face significant risks including unauthorized access, data breaches, and potential complete system takeover. The vulnerability's remote nature means that attackers can exploit it from anywhere on the network, making it particularly attractive for malicious actors. The lack of detailed provenance information regarding this vulnerability's discovery and reporting adds uncertainty to its true scope and potential for exploitation. System administrators should consider this vulnerability as a high-priority threat requiring immediate attention, especially in environments where email services are exposed to external networks. The vulnerability demonstrates the critical importance of input validation and buffer management in network service implementations, as proper bounds checking could have prevented the memory corruption that leads to arbitrary code execution. Organizations should implement immediate mitigations including software updates, network segmentation, and email filtering solutions to protect against exploitation attempts.