CVE-2003-1030 in Mini Remote Control Server
Summary
by MITRE
Buffer overflow in DameWare Mini Remote Control before 3.73 allows remote attackers to execute arbitrary code via a long pre-authentication request to TCP port 6129.
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Analysis
by VulDB Data Team • 11/18/2024
The vulnerability identified as CVE-2003-1030 represents a critical buffer overflow flaw in DameWare Mini Remote Control software versions prior to 3.73. This security weakness resides in the application's handling of pre-authentication requests sent to TCP port 6129, which is the default port used by the DameWare service for remote administration purposes. The buffer overflow occurs when the application fails to properly validate the length of incoming data before copying it into fixed-size memory buffers, creating an exploitable condition that can be leveraged by remote attackers without requiring authentication credentials.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the DameWare Mini Remote Control protocol handler. When a malicious actor sends a specially crafted pre-authentication request containing excessive data to port 6129, the application's memory management routines overflow the allocated buffer space, potentially overwriting adjacent memory locations including return addresses and control data. This type of vulnerability maps directly to CWE-121, which describes heap-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite memory and execute arbitrary code. The flaw exists at the protocol level where the application does not implement proper size validation before processing incoming network packets, making it susceptible to exploitation by attackers who can craft malicious payloads that exceed the expected buffer capacity.
From an operational impact perspective, this vulnerability creates a significant threat vector for remote attackers seeking to compromise systems running vulnerable versions of DameWare Mini Remote Control. Since the attack can be executed without authentication, it represents a pre-authentication exploit that allows adversaries to gain remote code execution privileges on target systems. The vulnerability affects any system that has the DameWare service running and listening on TCP port 6129, which is commonly deployed in enterprise environments for remote system administration and support. Attackers can leverage this weakness to establish persistent access, escalate privileges, or use the compromised system as a launch point for further attacks within the network infrastructure. The impact extends beyond individual system compromise to potentially enable lateral movement and broader network infiltration.
The mitigation strategies for CVE-2003-1030 primarily focus on immediate software updates and network security controls. Organizations should prioritize upgrading to DameWare Mini Remote Control version 3.73 or later, which includes proper input validation and buffer size checking mechanisms that prevent the overflow condition. Network segmentation and firewall rules should be implemented to restrict access to TCP port 6129, limiting exposure to only trusted administrative networks and users. Additionally, implementing intrusion detection systems that monitor for unusual patterns of traffic to port 6129 can help identify potential exploitation attempts. Security professionals should also consider disabling the DameWare service entirely if it is not required for business operations, as this eliminates the attack surface entirely. The vulnerability's classification under ATT&CK technique T1071.004 for application layer protocol and T1059.007 for command and scripting interpreter provides further context for defensive measures, emphasizing the need for network monitoring and application control policies to prevent unauthorized remote code execution through protocol-based attacks.