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Nuclei Templates

Varnish Unauthenticated Cache Purge

ID: unauthenticated-varnish-cache-purge

Severity: low

Author: 0xelkomy

Tags: misconfig,cache,hackerone,varnish

Description

Section titled “Description”

As per guideline one should protect purges with ACLs from unauthorized hosts.

YAML Source

Section titled “YAML Source”
id: unauthenticated-varnish-cache-purge


info:
  name: Varnish Unauthenticated Cache Purge
  author: 0xelkomy
  severity: low
  description: As per guideline one should protect purges with ACLs from unauthorized hosts.
  reference:
    - https://book.varnish-software.com/4.0/chapters/Cache_Invalidation.html
    - https://hackerone.com/reports/154278
  metadata:
    max-request: 1
  tags: misconfig,cache,hackerone,varnish


http:
  - method: PURGE
    path:
      - "{{BaseURL}}"


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<title>200 Purged</title>'
          - '"status": "ok"'
        condition: or


      - type: status
        status:
          - 200
# digest: 490a0046304402205d9985c110bf58b4905f8a0765a59acee6425c4ecfbc34067e058480d182114c022000f58eb3b8a6536952ebcd46aa2c453cea39a46843a6a272781a5563095f9db5:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

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 "http/misconfiguration/unauthenticated-varnish-cache-purge.yaml"

View on Github