CVE-2010-4184 in NetSupport Manager
Summary
by MITRE
NetSupport Manager (NSM) before 11.00.0005 sends HTTP headers with cleartext fields containing details about client machines, which allows remote attackers to obtain potentially sensitive information by sniffing the network.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2010-4184 affects NetSupport Manager versions prior to 11.00.0005, representing a significant information disclosure weakness in remote desktop management software. This issue stems from the application's improper handling of HTTP communication protocols during client machine identification processes. The flaw manifests when NSM transmits network requests containing detailed system information within HTTP headers without adequate encryption or sanitization measures. Attackers capable of performing network sniffing operations can intercept these unencrypted headers and extract sensitive metadata about target machines including operating system details, hardware specifications, and potentially other identifying characteristics that could aid in subsequent attack vectors.
The technical implementation of this vulnerability aligns with CWE-200, which catalogs weaknesses related to exposure of sensitive information. The flaw specifically exploits the absence of proper data sanitization and encryption mechanisms within the HTTP communication stack of the NetSupport Manager application. When client machines connect to the NSM server, the software includes identifying information within HTTP header fields that are transmitted in cleartext across the network. This design oversight creates a persistent exposure channel that violates fundamental security principles of information protection and network communication confidentiality. The vulnerability demonstrates poor adherence to secure coding practices and represents a failure to implement adequate transport layer security measures for sensitive data transmission.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable more sophisticated attack scenarios. Network sniffing capabilities allow adversaries to gather intelligence about target environments, which could facilitate targeted exploitation attempts against known system vulnerabilities or configuration weaknesses. The information obtained through this vector may include operating system versions, installed software packages, system architecture details, and potentially other client-specific metadata that could be leveraged in privilege escalation or lateral movement attacks. This vulnerability particularly affects organizations relying on remote desktop management solutions where network traffic may traverse untrusted network segments or where network monitoring capabilities exist within the environment.
Organizations should implement immediate mitigations including updating to NetSupport Manager version 11.00.0005 or later, which addresses the cleartext header transmission issue through proper encryption and sanitization mechanisms. Network segmentation strategies should be employed to isolate management traffic from general network segments, while implementing network monitoring solutions to detect unusual traffic patterns that might indicate exploitation attempts. The vulnerability also highlights the importance of following ATT&CK framework principles for defensive measures, particularly focusing on the T1046 technique related to network service scanning and T1071 for application layer protocols. Organizations should conduct comprehensive security assessments of their remote management infrastructure and implement proper network access controls to minimize exposure windows. Additionally, regular security audits should verify that all network communications containing sensitive information are properly encrypted using industry-standard protocols such as TLS 1.2 or higher to prevent similar vulnerabilities from emerging in other applications.