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ssrf-req-filter

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ssrf-req-filter

Module to prevent SSRF when making requests

1.1.1
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ssrf-req-filter - Prevent SSRF Attacks :shield:

npm NPM

Server-Side Request Forgery (SSRF)

SSRF is an attack vector that abuses an application to interact with the internal/external network or the machine itself. One of the enablers for this vector is the mishandling of URLs. Read More

Install

npm install ssrf-req-filter

Usage

  • Axios:
const ssrfFilter = require('ssrf-req-filter');
const url = 'https://127.0.0.1'
axios.get(url, {httpAgent: ssrfFilter(url), httpsAgent: ssrfFilter(url)})
      .then((response) => {
        console.log(`Success`);
      })
      .catch((error) => {
        console.log(`${error.toString().split('\n')[0]}`);
      })
      .then(() => {

      });
  • Node-fetch:
const ssrfFilter = require('ssrf-req-filter');
const fetch = require("node-fetch");
const url = 'https://127.0.0.1'
fetch(url, {
    agent: ssrfFilter(url)
  })
  .then((response) => {
    console.log(`Success`);
  })
  .catch(error => {
    console.log(`${error.toString().split('\n')[0]}`);
  });

Note: It's recommended to overwrite both httpAgent and httpsAgent in Axios with ssrf-req-filter. Otherwise, SSRF mitigation can be bypassed via cross protocol redirects. Refer to Doyensec's research for more information.

Credits: Implementation inspired By https://github.com/welefen/ssrf-agent

Keywords

ssrf

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Package last updated on 11 May 2024

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