This hunting search provides information on possible exploitation attempts against Splunk Secure Gateway App Mobile Alerts feature in Splunk versions 9.0, 8.2.x, 8.1.x. An authenticated user can run arbitrary operating system commands remotely through the use of specially crafted requests to the mobile alerts feature in the Splunk Secure Gateway app.
- Type: Hunting
Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Last Updated: 2022-10-11
- Author: Rod Soto
- ID: baa41f09-df48-4375-8991-520beea161be
Kill Chain Phase
- CIS 3
- CIS 5
- CIS 16
1 2 3 `splunkd_webx` uri_path="/servicesNS/nobody/splunk_secure_gateway/storage/collections/data/mobile_alerts*" sort="notification.created_at:-1" | table clientip file host method uri_query sort | `splunk_rce_via_splunk_secure_gateway__splunk_mobile_alerts_feature_filter`
The SPL above uses the following Macros:
splunk_rce_via_splunk_secure_gateway__splunk_mobile_alerts_feature_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
List of fields required to use this analytic.
How To Implement
This search only applies if Splunk Mobile Gateway is deployed in the vulnerable Splunk versions.
Known False Positives
This detection does not require you to ingest any new data. The detection does require the ability to search the _internal index. Focus of this search is "uri_path=/servicesNS/nobody/splunk_secure_gateway/storage/collections/data/mobile_alerts*" which is the injection point.
Associated Analytic Story
|81.0||90||90||Possible exploitation attempt from $clientip$|
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
source | version: 1