LoFP LoFP / the proof of concept exploit script indicates that status=200 is required for successful exploitation of the vulnerability. false positives may be present if status=200 is removed from the search. if it is removed,then the search also alert on status=301 and status=404 which indicates unsuccessful exploitation attempts. analysts may find it useful to hunt for these status codes as well, but it is likely to produce a significant number of alerts as this is a widespread vulnerability.

Techniques

Sample rules

Ivanti EPMM Remote Unauthenticated API Access CVE-2023-35078

Description

The following analytic detects attempts to exploit CVE-2023-35078, a vulnerability in Ivanti Endpoint Manager Mobile (EPMM) versions up to 11.4. It identifies HTTP requests to the endpoint “/mifs/aad/api/v2/authorized/users?*” with a status code of 200 in web logs. This activity is significant as it indicates unauthorized remote access to restricted functionalities or resources. If confirmed malicious, this could lead to data theft, unauthorized modifications, or further system compromise, necessitating immediate action to mitigate potential severe impacts.

Detection logic


| tstats `security_content_summariesonly`
  count min(_time) as firstTime
        max(_time) as lastTime

FROM datamodel=Web WHERE

Web.url="*/mifs/aad/api/v2/authorized/users?*"
Web.status=200

BY Web.http_user_agent Web.status Web.http_method
   Web.url Web.url_length Web.src Web.dest


| `drop_dm_object_name("Web")`

| `security_content_ctime(firstTime)`

| `security_content_ctime(lastTime)`

| `ivanti_epmm_remote_unauthenticated_api_access_cve_2023_35078_filter`