CVE-2002-1001 in AnalogX
Summary
by MITRE
Buffer overflows in AnalogX Proxy before 4.12 allows remote attackers to cause a denial of service and possibly execute arbitrary code via (1) a long HTTP request to TCP port 6588 or (2) a SOCKS 4A request to TCP port 1080 with a long DNS hostname.
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Analysis
by VulDB Data Team • 05/25/2025
The vulnerability identified as CVE-2002-1001 represents a critical buffer overflow issue affecting AnalogX Proxy software versions prior to 4.12. This flaw exists within the network proxy service that handles both HTTP and SOCKS protocols, creating a significant security risk for systems utilizing this software. The vulnerability manifests when the proxy server processes incoming requests without proper input validation, allowing malicious actors to exploit memory handling weaknesses in the application's code structure.
The technical implementation of this vulnerability occurs through two distinct attack vectors that leverage different protocol implementations within the AnalogX Proxy service. The first vector targets TCP port 6588 which handles HTTP requests, where attackers can craft excessively long HTTP request strings that exceed the allocated buffer space in the application's memory management. The second vector exploits TCP port 1080 which manages SOCKS 4A requests, specifically targeting the DNS hostname field within SOCKS requests where attackers can provide overly long hostnames that trigger the same buffer overflow condition. Both attack methods rely on the fundamental flaw of insufficient input length validation and inadequate memory boundary checking in the proxy server's request processing code.
The operational impact of this vulnerability extends beyond simple denial of service conditions to potentially enable remote code execution on affected systems. When the buffer overflow occurs, it can corrupt memory structures and potentially allow attackers to overwrite critical program execution pointers or inject malicious code into the running proxy process. This represents a severe security compromise that could lead to complete system compromise, as the proxy service typically operates with elevated privileges to handle network traffic. The vulnerability affects systems where AnalogX Proxy is deployed as a network gateway or firewall service, making it particularly dangerous in enterprise environments where such proxy services are commonly implemented.
The weakness underlying this vulnerability maps directly to CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. These classifications highlight the fundamental memory corruption issue that occurs when input data exceeds allocated buffer boundaries. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1203, which involves exploitation of software vulnerabilities for privilege escalation and system compromise. The attack surface is particularly concerning as it affects both HTTP and SOCKS proxy implementations, providing attackers with multiple potential entry points into network infrastructure. Organizations should prioritize immediate patching of this vulnerability as it represents a known exploit that can be leveraged for both service disruption and potential system takeover.
Mitigation strategies for this vulnerability require immediate implementation of software updates to AnalogX Proxy version 4.12 or later, which contain the necessary code fixes for proper input validation and buffer management. Network administrators should also implement firewall rules to restrict access to the vulnerable TCP ports 6588 and 1080, limiting exposure to unauthorized users. Additionally, monitoring systems should be configured to detect unusual patterns of traffic to these ports, as the attack behavior would likely generate distinctive network signatures. Organizations should conduct thorough vulnerability assessments to identify all instances of AnalogX Proxy in their network infrastructure and ensure proper patch management processes are in place to prevent similar issues from occurring in other legacy software components.