Sitecore Pre-Auth RCE CVE-2021-42237

Description

Detects exploitation attempts of Sitecore Experience Platform Pre-Auth RCE CVE-2021-42237 found in Report.ashx

Query · sigma

selection:
  cs-method: POST
  cs-uri-query|contains: /sitecore/shell/ClientBin/Reporting/Report.ashx
  sc-status: 200
condition: selection

Known false positives

  • Vulnerability Scanning
Raw source Sitecore Pre-Auth RCE CVE-2021-42237 · Sigma
Esc
Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Sitecore Pre-Auth RCE CVE-2021-42237
id: 20c6ed1c-f7f0-4ea3-aa65-4f198e6acb0f
status: test
description: Detects exploitation attempts of Sitecore Experience Platform Pre-Auth RCE CVE-2021-42237 found in Report.ashx
references:
    - https://blog.assetnote.io/2021/11/02/sitecore-rce/
    - https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1000776
author: Florian Roth (Nextron Systems)
date: 2021-11-17
modified: 2023-01-02
tags:
    - attack.initial-access
    - attack.t1190
    - cve.2021-42237
    - detection.emerging-threats
logsource:
    category: webserver
detection:
    selection:
        cs-method: 'POST'
        cs-uri-query|contains: '/sitecore/shell/ClientBin/Reporting/Report.ashx'
        sc-status: 200
    condition: selection
falsepositives:
    - Vulnerability Scanning
level: high

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.