Files
codeql/javascript/ql/test/query-tests/Security/CWE-770/ResourceExhaustion/resource-exhaustion.js

105 lines
2.9 KiB
JavaScript

var http = require("http"),
url = require("url");
var server = http.createServer(function(req, res) {
let s = url.parse(req.url, true).query.s;
let n = parseInt(s);
Buffer.from(s); // OK
Buffer.from(n); // OK
Buffer.from(x, n); // OK
Buffer.from(x, y, s); // OK - does not allocate memory
Buffer.from(x, y, n); // OK - does not allocate memory
Buffer.from(x, y, n); // OK - does not allocate memory
Buffer.alloc(n); // NOT OK
Buffer.allocUnsafe(n); // NOT OK
Buffer.allocUnsafeSlow(n); // NOT OK
new Buffer(n); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(x, n); // OK
new Buffer(x, y, n); // NOT OK
new SlowBuffer(n); // NOT OK
Array(n); // OK
new Array(n); // OK
Array(n).map(); // NOT OK
new Array(n).map(); // NOT OK
Array(n).fill(); // NOT OK
Array(n).join(); // NOT OK
Array(n).toString(); // NOT OK
Array(n) + x; // NOT OK
x.repeat(n); // NOT OK
x.repeat(s); // NOT OK
new Buffer(n * x); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(n + n); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(n + x); // OK (maybe)
new Buffer(n + s); // OK (this is a string if `s` is a string)
new Buffer(s + 2); // OK (this is a string if `s` is a string)
new Buffer(s + s); // OK
new Buffer(n + "X"); // OK
new Buffer(Math.ceil(s)); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(Number(s)); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(new Number(s)); // OK
new Buffer(s + x.length); // OK (this is a string if `s` is a string)
new Buffer(s.length); // NOT OK - but not flagged [INCONSISTENCY]
if (n < 100) {
new Buffer(n); // OK
} else {
new Buffer(n); // NOT OK - but not flagged [INCONSISTENCY]
}
let ns = x ? n : s;
new Buffer(ns); // NOT OK - but not flagged [INCONSISTENCY]
new Buffer(n.toString()); // OK
if (typeof n === "string") {
new Buffer(n); // OK
} else {
new Buffer(n); // NOT OK - but not flagged [INCONSISTENCY]
}
if (typeof n === "number") {
new Buffer(n); // NOT OK - but not flagged [INCONSISTENCY]
} else {
new Buffer(n); // OK
}
if (typeof s === "number") {
new Buffer(s); // NOT OK - but not flagged [INCONSISTENCY]
} else {
new Buffer(s); // OK
}
setTimeout(f, n); // NOT OK
setTimeout(f, s); // NOT OK
setInterval(f, n); // NOT OK
setInterval(f, s); // NOT OK
Buffer.alloc(n.length); // OK - only allocing as much as the length of the input.
Buffer.alloc(n); // NOT OK
if (n < 1000) {
Buffer.alloc(n); // OK - length check
} else {
Buffer.alloc(n); // NOT OK - NO length check
}
});
function browser() {
const delay = parseInt(window.location.search.replace('?', '')) || 5000;
setTimeout(() => {
console.log("f00");
}, delay); // OK - source is client side
window.onmessage = (e) => {
setTimeout(() => {}, e.data); // OK - source is client side
}
}