The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command injection vulnerability. Problem was fixed in version 5.3.1. As a workaround instead of upgrading, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() ... do only allow strings, reject any arrays. String sanitation works as expected.
This vulnerability allows attackers to potentially execute arbitrary commands by exploiting the vulnerable functionality. The impact on confidentiality and integrity can be significant, making this a high-priority issue for organizations using affected versions.
Risk to organizations includes unauthorized command execution and potential system compromise. Organizations should prioritize patching immediately.
The vulnerability is categorized under CWE-78, which relates to command injection. Given the nature of this vulnerability and its potential impact, organizations must take immediate action to mitigate the risk.
With a CVSS score of 7.1, this vulnerability falls into the high severity category, indicating a need for urgent remediation efforts.
Vulnerability Details
The command injection vulnerability in the System Information Library for Node.JS allows attackers to exploit the library’s functions to execute arbitrary commands on the server. The affected versions are prior to 5.3.1, which has since been patched to address this issue.
The vulnerability was first published on February 16, 2021, and is classified as a command injection issue (CWE-78). The CVSS score provided by the NVD is 7.8, which further emphasizes the need for organizations to take this threat seriously.
Technical Analysis
The root cause of this vulnerability lies in improper input validation when processing service parameters passed to certain functions. Attackers may leverage this weakness through a local attack vector, as it requires no user interaction and no privileges.
The attack complexity is considered low, making it easier for attackers to exploit this vulnerability. The impacts on confidentiality and integrity are significant, with potential loss of data integrity and unauthorized access to sensitive information.
The vulnerability does not impact availability, as it primarily affects the system's integrity through command injection.
Risk & Impact Analysis
Real-world deployment risk includes the potential for attackers to gain unauthorized access and execute arbitrary commands on affected systems. The blast radius can be significant for organizations using the vulnerable library, especially if it serves critical functions in their infrastructure.
Organizations should assess their exposure to this vulnerability and prioritize remediation based on their specific risk profiles. The urgency for patching is high, given the CVSS score and the potential impacts on data integrity and system security.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The vulnerable versions of the System Information Library for Node.JS are all versions prior to 5.3.1. Organizations should upgrade to the fixed version to mitigate this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should apply updates per vendor instructions immediately. For those unable to upgrade, it is crucial to sanitize inputs to the affected functions, allowing only strings and rejecting any arrays. This approach can help mitigate the risk of command injection.
Organizations should consider implementing additional monitoring to detect any suspicious activity related to this vulnerability.
For further insights on securing applications, organizations can refer to the comprehensive guidelines on application security assessments.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual command executions and validate logs for anomalies related to the affected components.
Implementing behavioral analytics can help identify patterns associated with command injection attempts.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the ongoing risks associated with improper input validation within software libraries. As organizations increasingly rely on open source components, ensuring robust security practices is paramount.
The pattern of command injection vulnerabilities demonstrates the need for developers to adopt secure coding practices, especially when handling user inputs.
Security teams should leverage this incident to reinforce their application security protocols and emphasize the importance of regular code reviews and vulnerability assessments. For more information on effective strategies for addressing vulnerabilities, organizations can explore our vulnerability management program and consider adopting a proactive approach to security.
Additionally, organizations should review their security posture against the latest trends in vulnerability exploitation, such as those outlined in our penetration testing methodology to enhance their defensive strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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