this hunting search only applies to the affected versions and setup mentioned in the description of this search, it does not extract payload so it requires manual investigation after executing search. this search will produce false positives.

t1189
endpoint
splunk

Techniques

T1189

Sample rules

Splunk csrf in the ssg kvstore client endpoint

source: splunk
technicques:
- T1189

Description

In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, a cross-site request forgery in the Splunk Secure Gateway (SSG) app in the kvstore_client endpoint allows for updating SSG KV store collections via a GET request. SSG is a Splunk Built app included by default with Splunk Enterprise. The vulnerability affects instances with SSG and Splunk Web enabled. This hunting search provides information on affected server specific method and post data that may reveal exploitation of this vulnerability.

Detection logic

`splunkda` uri_path="/en-US/splunkd/__raw/services/ssg/kvstore_client" method="GET" delete_field_value="spacebridge_server" status="200"  
| table splunk_server status uri delete_field_value method post_data  
| `splunk_csrf_in_the_ssg_kvstore_client_endpoint_filter`