Name:Exploit Public-Facing Fortinet FortiNAC CVE-2022-39952 id:2038f5c6-5aba-4221-8ae2-ca76e2ca8b97 version:11 date:None author:Michael Haag, Splunk status:production type:TTP Description:The following analytic detects attempts to exploit the Fortinet FortiNAC CVE-2022-39952 vulnerability. It identifies HTTP POST requests to the URI configWizard/keyUpload.jsp with a payload.zip file.
The detection leverages the Web datamodel, analyzing fields such as URL, HTTP method, and user agent.
This activity is significant as it indicates an attempt to exploit a known vulnerability, potentially leading to remote code execution.
If confirmed malicious, attackers could gain control over the affected system, schedule malicious tasks, and establish persistent access via a remote command and control (C2) server.
Data_source:
-Palo Alto Network Threat
search:| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime
how_to_implement:This detection requires the Web datamodel to be populated from a supported Technology Add-On like Splunk for Apache, Splunk for Nginx, or Splunk for Palo Alto.
known_false_positives:False positives may be present. Modify the query as needed to POST, or add additional filtering (based on log source).
References: -https://github.com/horizon3ai/CVE-2022-39952 -https://www.horizon3.ai/fortinet-fortinac-cve-2022-39952-deep-dive-and-iocs/ -https://viz.greynoise.io/tag/fortinac-rce-attempt?days=30 drilldown_searches: name:'View the detection results for - "$dest$"' search:'%original_detection_search% | search dest = "$dest$"' earliest_offset:'$info_min_time$' latest_offset:'$info_max_time$' name:'View risk events for the last 7 days for - "$dest$"' search:'| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$dest$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`' earliest_offset:'7d' latest_offset:'0' analytic_story:['Fortinet FortiNAC CVE-2022-39952', 'Hellcat Ransomware']
