Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%

CVE-2021-28918 PoC — Npm netmask 代码问题漏洞

Source
Associated Vulnerability
Title:Npm netmask 代码问题漏洞 (CVE-2021-28918)
Description:Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.
Description
Netmask NPM Package is susceptible to server-side request forgery because of improper input validation of octal strings in netmask npm package. This allows unauthenticated remote attackers to perform indeterminate SSRF, remote file inclusion, and local file inclusion attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.
File Snapshot

id: CVE-2021-28918 info: name: Netmask NPM Package - Server-Side Request Forgery author: johnjh ...
Shenlong Bot has cached this for you
Remarks
    1. It is advised to access via the original source first.
    2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.
    3. Mirroring, verifying, and maintaining this POC archive takes ongoing effort, so local snapshots are a paid feature. Your subscription keeps the archive online — thank you for the support. View subscription plans →