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Description

This hunting detection provides information on exploitation of stored XSS against /configs/conf-web/settings by an admin level user.

  • Type: Hunting

  • Product: Splunk Enterprise

  • Last Updated: 2024-07-01
  • Author: Rod Soto, Chase Franklin
  • ID: ed1209ef-228d-4dab-9856-be9369925a5c

Annotations

ATT&CK

ATT&CK

ID Technique Tactic
T1189 Drive-by Compromise Initial Access
Kill Chain Phase
  • Delivery
NIST
  • DE.AE
CIS20
  • CIS 10
CVE
ID Summary CVSS
    


1
2
3
4
5



`splunk_python` *script* *eval* 
| stats min(_time) as firstTime max(_time) as lastTime by index, sourcetype, host 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `splunk_stored_xss_conf_web_settings_on_premises_filter`

Macros

The SPL above uses the following Macros:

:information_source: splunk_stored_xss_conf-web_settings_on_premises_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.

  • UPDATE

How To Implement

Requires access to internal indexes.

Known False Positives

This is a hunting search and will produce false positives, operator must identify XSS elemetns in the splunk_python log related to the vulnerable endpoint.

Associated Analytic Story

RBA

Risk Score Impact Confidence Message
20.0 20 100 Possible XSS 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