Try in Splunk Security Cloud

Description

This hunting search provides information on exploitation attempts against /modules/messaging endpoint, the exploit can be clearly seen as the ../ which signals an attempt to traverse target directories.

  • Type: Hunting

  • Product: Splunk Enterprise

  • Last Updated: 2024-07-01
  • Author: Rod Soto, Chase Franklin
  • ID: e7c2b064-524e-4d65-8002-efce808567aa

Annotations

ATT&CK

ATT&CK

ID Technique Tactic
T1083 File and Directory Discovery Discovery
Kill Chain Phase
  • Exploitation
NIST
  • DE.AE
CIS20
  • CIS 10
CVE 


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`splunkd_web` method=GET uri_path="/*/modules/messaging/*..*" 
| stats min(_time) as firstTime max(_time) as lastTime values(method) as method values(uri_path) as uri_path by host 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `splunk_unauthenticated_path_traversal_modules_messaging_filter`

Macros

The SPL above uses the following Macros:

:information_source: splunk_unauthenticated_path_traversal_modules_messaging_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.

Required fields

List of fields required to use this analytic.

  • method
  • uri_path
  • host

How To Implement

Only applies to Microsoft Windows installations of Splunk.

Known False Positives

May catch other exploitation attempts using path traversal related characters.

Associated Analytic Story

RBA

Risk Score Impact Confidence Message
20.0 20 100 Possible directory traversal attack against $host$

:information_source: The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.

Reference

Test Dataset

Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI. Alternatively you can replay a dataset into a Splunk Attack Range

source | version: 1