
Research
/Security News
Critical Vulnerability in NestJS Devtools: Localhost RCE via Sandbox Escape
A flawed sandbox in @nestjs/devtools-integration lets attackers run code on your machine via CSRF, leading to full Remote Code Execution (RCE).
ssrf-req-filter
Advanced tools
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
npm install ssrf-req-filter
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(`${error.toString().split('\n')[0]}`);
})
.then(() => {
});
const ssrfFilter = require('ssrf-req-filter');
const fetch = require("node-fetch");
const url = 'https://127.0.0.1'
fetch(url, {
agent: ssrfFilter(url)
})
.then((response) => {
console.log(`Success`);
})
.catch(error => {
console.log(`${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
FAQs
Module to prevent SSRF when making requests
The npm package ssrf-req-filter receives a total of 56,251 weekly downloads. As such, ssrf-req-filter popularity was classified as popular.
We found that ssrf-req-filter demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Research
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A flawed sandbox in @nestjs/devtools-integration lets attackers run code on your machine via CSRF, leading to full Remote Code Execution (RCE).
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