Malicious code in x509-escaping (npm)
Exploitation and risk
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osv · MAL-2025-889
Published--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (a0ac597bf732e187011fdef75554843eec3e581b18fdf2c0e83b4dd4aa559731) package.json declares `preinstall: node index.js`, so on `npm install` the shipped index.js runs automatically. It collects hostname, username, home directory, DNS servers, and current working directory, and reads /etc/passwd and /etc/hosts via fs.readFileSync, then POSTs the bundle over HTTPS to the hardcoded host `agumuj6lhw9yqopq6npl1nlgu70yorcg.oastify.com` (a Burp Collaborator out-of-band subdomain). The package name and single-purpose recon payload match the dependency-confusion reconnaissance pattern: no library functionality is shipped, only install-time data exfiltration to an attacker-controlled OOB host.
- Source published
- 3 Feb 2025 17:06:31 UTC
- Source modified
- 18 Sep 2026 20:45:06 UTC
- Saved here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- OSV · upstream source license applies
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.