GitHub Repo

Screenconnect

Date: 2024-02-21 ID: b0d3cc46-f74d-462b-b5db-71eba68d6912 Author: Michael Haag, Splunk Environment: attack_range Directory: screenconnect

Description

Manual generation of attack data related to ConnectWise Screenconnect CVE-2024-1708 CVE-2024-1709.

MITRE ATT&CK Techniques

ID Technique Tactic
T1190 Exploit Public-Facing Application Initial Access

Environment Details

Field Value
Environment attack_range
Directory screenconnect
Test Date 2024-02-21

Datasets

The following datasets were collected during this attack simulation:

Sysmon_app_extensions

  • Path: /datasets/attack_techniques/T1190/screenconnect/sysmon_app_extensions.log
  • Sourcetype: XmlWinEventLog
  • Source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational

Nginx_screenconnect

  • Path: /datasets/attack_techniques/T1190/screenconnect/nginx_screenconnect.log
  • Sourcetype: nginx:plus:access
  • Source: nginx

Connectwise_auth_suricata

  • Path: /datasets/attack_techniques/T1190/screenconnect/connectwise_auth_suricata.log
  • Sourcetype: linux_secure
  • Source: linux_secure

The following detections in our security content repository use this attack data for testing:

Detection Name Type Source MITRE ATT&CK Analytic Story
ConnectWise ScreenConnect Path Traversal Windows SACL TTP Endpoint T1190 ConnectWise ScreenConnect Vulnerabilities, Compromised Windows Host, Seashell Blizzard
ConnectWise ScreenConnect Path Traversal TTP Endpoint T1190 ConnectWise ScreenConnect Vulnerabilities, Seashell Blizzard
Nginx ConnectWise ScreenConnect Authentication Bypass TTP Web T1190 ConnectWise ScreenConnect Vulnerabilities, Seashell Blizzard, Scattered Lapsus$ Hunters, Hellcat Ransomware
ConnectWise ScreenConnect Authentication Bypass TTP Web T1190 ConnectWise ScreenConnect Vulnerabilities, Seashell Blizzard

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1190/screenconnect/sysmon_app_extensions.log --index attack_data

Manual Import

  1. Download the dataset files from the paths listed above
  2. Configure your Splunk instance with the appropriate sourcetypes
  3. Import the logs using the Splunk Add Data wizard

Related Content

Find more detections and analytics for this attack technique in our security content repository.

Source: GitHub | Version: 1.0