CVE-2000-1140 in ManTrap
Summary
by MITRE
Recourse ManTrap 1.6 does not properly hide processes from attackers, which could allow attackers to determine that they are in a honeypot system by comparing the results from kill commands with the process listing in the /proc filesystem.
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Analysis
by VulDB Data Team • 01/25/2025
The vulnerability described in CVE-2000-1140 affects Recourse ManTrap version 1.6, a honeypot system designed to detect and analyze malicious network activity. This flaw represents a significant security weakness in the system's ability to maintain operational stealth and deception. The vulnerability stems from the software's improper handling of process visibility, creating a direct correlation between the system's process management and its ability to remain undetected by attackers. The issue specifically manifests in the inconsistency between process listings in the /proc filesystem and the responses to kill commands, which creates detectable patterns that adversaries can exploit to identify honeypot environments.
The technical implementation of this vulnerability involves the system's failure to properly mask or filter process information within the /proc filesystem, which is a standard Linux virtual filesystem that provides an interface to kernel data structures. When attackers execute kill commands against processes and simultaneously examine the /proc filesystem for process listings, they can identify discrepancies that reveal the honeypot's true nature. This process hiding mechanism fails to maintain consistent behavior between different system interfaces, allowing attackers to cross-reference information and determine that they are interacting with a honeypot rather than a legitimate system. The vulnerability directly relates to CWE-200, which addresses improper information exposure, and CWE-254, which covers security weaknesses in process management.
The operational impact of this vulnerability is severe for organizations relying on honeypot systems for threat detection and analysis. Attackers who successfully identify a honeypot can alter their behavior, potentially avoiding detection while continuing malicious activities in other parts of the network. This undermines the fundamental purpose of honeypots, which is to lure attackers into a controlled environment where their activities can be monitored and analyzed. The vulnerability essentially defeats the deception aspect of the honeypot, rendering it ineffective for its intended security purposes. Additionally, this weakness may expose the honeypot's network position and operational characteristics to attackers, potentially leading to more sophisticated attacks against the actual network infrastructure. The issue also relates to ATT&CK technique T1496, which covers resource hijacking, as attackers can effectively bypass the honeypot's intended protective function.
Mitigation strategies for this vulnerability require comprehensive system hardening and process management improvements. Organizations should ensure that honeypot systems implement proper process hiding mechanisms that maintain consistency between different system interfaces, particularly between kill command responses and /proc filesystem listings. The system should employ techniques such as process name obfuscation, proper privilege management, and consistent process state reporting to prevent information leakage. Network administrators should consider implementing additional layers of deception, such as false process listings and inconsistent system information, to make it more difficult for attackers to determine the true nature of the system. Regular security assessments and penetration testing should be conducted to verify that honeypot systems maintain their operational stealth and that no similar information disclosure vulnerabilities exist in other system components. The remediation approach should also include monitoring for suspicious patterns that might indicate attackers attempting to identify honeypot systems through process enumeration techniques.