/
direct-response-write.yaml
239 lines (239 loc) · 6.62 KB
/
direct-response-write.yaml
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rules:
- id: direct-response-write
message: >-
Detected directly writing to a Response object from user-defined input.
This bypasses any HTML escaping and may expose your application to a Cross-Site-scripting
(XSS) vulnerability. Instead, use 'resp.render()' to render safely escaped HTML.
options:
interfile: true
metadata:
interfile: true
references:
- https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html
owasp:
- A07:2017 - Cross-Site Scripting (XSS)
- A03:2021 - Injection
cwe:
- 'CWE-79: Improper Neutralization of Input During Web Page Generation (''Cross-site
Scripting'')'
category: security
technology:
- express
cwe2022-top25: true
cwe2021-top25: true
subcategory:
- vuln
likelihood: MEDIUM
impact: MEDIUM
confidence: MEDIUM
license: Commons Clause License Condition v1.0[LGPL-2.1-only]
vulnerability_class:
- Cross-Site-Scripting (XSS)
languages:
- javascript
- typescript
severity: WARNING
mode: taint
pattern-sources:
- patterns:
- pattern-either:
- pattern-inside: function ... ($REQ, $RES) {...}
- pattern-inside: function ... ($REQ, $RES, $NEXT) {...}
- patterns:
- pattern-inside: $APP.$METHOD(..., function $FUNC($REQ, $RES) {...})
- metavariable-regex:
metavariable: $METHOD
regex: ^(get|post|put|head|delete|options)
- pattern-not-inside: |
function ... ($REQ, $RES) {
...
$RES.$SET('Content-Type', '$TYPE')
}
- pattern-not-inside: |
$APP.$METHOD(..., function $FUNC($REQ, $RES) {
...
$RES.$SET('Content-Type', '$TYPE')
})
- pattern-not-inside: |
function ... ($REQ, $RES, $NEXT) {
...
$RES.$SET('Content-Type', '$TYPE')
}
- pattern-not-inside: |
function ... ($REQ, $RES) {
...
$RES.set('$TYPE')
}
- pattern-not-inside: |
$APP.$METHOD(..., function $FUNC($REQ, $RES) {
...
$RES.set('$TYPE')
})
- pattern-not-inside: |
function ... ($REQ, $RES, $NEXT) {
...
$RES.set('$TYPE')
}
- pattern-either:
- pattern: $REQ.query
- pattern: $REQ.body
- pattern: $REQ.params
- patterns:
- pattern-either:
- pattern-inside: |
({ $REQ }: Request,$RES: Response, $NEXT: NextFunction) =>
{...}
- pattern-inside: |
({ $REQ }: Request,$RES: Response) => {...}
- pattern-not-inside: |
({ $REQ }: Request,$RES: Response, $NEXT: NextFunction) =>
{
...
$RES.$SET('Content-Type', '$TYPE')
}
- pattern-not-inside: |
({ $REQ }: Request,$RES: Response) => {
...
$RES.$SET('Content-Type', '$TYPE')
}
- pattern-not-inside: |
({ $REQ }: Request,$RES: Response, $NEXT: NextFunction) =>
{
...
$RES.set('$TYPE')
}
- focus-metavariable: $REQ
- pattern-either:
- pattern: params
- pattern: query
- pattern: body
pattern-sinks:
- patterns:
- pattern-inside: function ... (..., $RES,...) {...}
- pattern-either:
- pattern: $RES.write($ARG)
- pattern: $RES.send($ARG)
- pattern-not: $RES. ... .set('...'). ... .send($ARG)
- pattern-not: $RES. ... .type('...'). ... .send($ARG)
- pattern-not-inside: $RES.$METHOD({ ... })
- focus-metavariable: $ARG
pattern-sanitizers:
- patterns:
- pattern-either:
- pattern-inside: |
import $S from "underscore.string"
...
- pattern-inside: |
import * as $S from "underscore.string"
...
- pattern-inside: |
import $S from "underscore.string"
...
- pattern-inside: |
$S = require("underscore.string")
...
- pattern-either:
- pattern: $S.escapeHTML(...)
- patterns:
- pattern-either:
- pattern-inside: |
import $S from "dompurify"
...
- pattern-inside: |
import { ..., $S,... } from "dompurify"
...
- pattern-inside: |
import * as $S from "dompurify"
...
- pattern-inside: |
$S = require("dompurify")
...
- pattern-inside: |
import $S from "isomorphic-dompurify"
...
- pattern-inside: |
import * as $S from "isomorphic-dompurify"
...
- pattern-inside: |
$S = require("isomorphic-dompurify")
...
- pattern-either:
- patterns:
- pattern-inside: |
$VALUE = $S(...)
...
- pattern: $VALUE.sanitize(...)
- patterns:
- pattern-inside: |
$VALUE = $S.sanitize
...
- pattern: $S(...)
- pattern: $S.sanitize(...)
- pattern: $S(...)
- patterns:
- pattern-either:
- pattern-inside: |
import $S from 'xss';
...
- pattern-inside: |
import * as $S from 'xss';
...
- pattern-inside: |
$S = require("xss")
...
- pattern: $S(...)
- patterns:
- pattern-either:
- pattern-inside: |
import $S from 'sanitize-html';
...
- pattern-inside: |
import * as $S from "sanitize-html";
...
- pattern-inside: |
$S = require("sanitize-html")
...
- pattern: $S(...)
- patterns:
- pattern-either:
- pattern-inside: |
$S = new Remarkable()
...
- pattern: $S.render(...)
- patterns:
- pattern-either:
- pattern-inside: |
import $S from 'express-xss-sanitizer';
...
- pattern-inside: |
import * as $S from "express-xss-sanitizer";
...
- pattern-inside: |
const { ..., $S, ... } = require('express-xss-sanitizer');
...
- pattern-inside: |
var { ..., $S, ... } = require('express-xss-sanitizer');
...
- pattern-inside: |
let { ...,$S,... } = require('express-xss-sanitizer');
...
- pattern-inside: |
$S = require("express-xss-sanitizer")
...
- pattern: $S(...)
- patterns:
- pattern: $RES. ... .type('$F'). ... .send(...)
- metavariable-regex:
metavariable: $F
regex: (?!.*text/html)
- patterns:
- pattern-inside: |
$X = [...];
...
- pattern: |
if(<... !$X.includes($SOURCE)...>) {
...
return ...
}
...
- pattern: $SOURCE