it is not possible to discern from the user table whether or not users with admin rights have been created intentionally, accidentally, or as a result of exploitation. each user with these rights should be investigated and, if legitimate, added to the filter macro above. if a user is not believed to be legitimate, then further investigation should take place.

t1189
endpoint
splunk

Techniques

T1189

Sample rules

Splunk list all nonstandard admin accounts

source: splunk
technicques:
- T1189

Description

This search will enumerate all Splunk Accounts with administrative rights on this instance. It deliberately ignores the default admin account since this is assumed to be present. This search may help in a detection the Cross-Site Scripting Attack listed: In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, a View allows for Cross-Site Scripting in an XML View through the ’layoutPanel’ attribute in the ‘module’ tag. The vulnerability affects instances with Splunk Web enabled.

Detection logic


| rest splunk_server=local /services/authentication/users 
|search capabilities=admin* OR imported_capabilities=admin* title!=admin 
| table title roles capabilities splunk_server 
| `splunk_list_all_nonstandard_admin_accounts_filter`