Platform
nodejs
Component
dns-sync
Fixed in
0.1.1
CVE-2017-16100 describes a critical Command Injection vulnerability affecting the dns-sync package. This flaw allows attackers to execute arbitrary commands on the system by manipulating input to the resolve() method. Versions of dns-sync prior to 0.1.1 are vulnerable. A fix is available in version 0.1.1.
The dns-sync package is a DNS resolver for Node.js. This vulnerability allows an attacker to inject arbitrary commands into the system's shell. Successful exploitation could lead to complete system compromise, including data theft, malware installation, and denial of service. The impact is particularly severe if dns-sync is used in a production environment or handles sensitive data. The ability to execute commands directly on the server represents a significant security risk, potentially enabling attackers to gain persistent access and control.
This vulnerability was publicly disclosed in July 2018. While no active exploitation campaigns have been definitively linked to CVE-2017-16100, the ease of exploitation and the critical severity make it a potential target. Public proof-of-concept exploits are available, increasing the risk of opportunistic attacks. The vulnerability is not currently listed on CISA KEV.
Exploit Status
EPSS
5.34% (90% percentile)
The primary mitigation for CVE-2017-16100 is to upgrade to version 0.1.1 or later of dns-sync. If upgrading is not immediately feasible, consider using an alternative DNS resolver to avoid relying on the vulnerable dns-sync package. Input validation on the dns-sync.resolve() method is crucial to prevent command injection. Carefully review and sanitize any user-supplied data before passing it to this function. Consider implementing a Web Application Firewall (WAF) to filter potentially malicious requests.
No official patch available. Check for workarounds or monitor for updates.
Vulnerability analysis and critical alerts directly to your inbox.
CVE-2017-16100 is a critical vulnerability in the dns-sync Node.js package that allows attackers to execute arbitrary commands on the system through the resolve() method.
You are affected if you are using a version of dns-sync prior to 0.1.1 and are not properly sanitizing input to the resolve() method.
Upgrade to version 0.1.1 or later of dns-sync. Alternatively, use a different DNS resolver.
While no confirmed active exploitation campaigns are publicly known, the vulnerability's severity and ease of exploitation make it a potential target.
Refer to the original vulnerability report and related security advisories for details: [https://nvd.nist.gov/vuln/detail/CVE-2017-16100](https://nvd.nist.gov/vuln/detail/CVE-2017-16100)
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