Technical Tip: Using FortiAnalyzer to detect activities related to the Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities

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Description	This article describes how to use a custom event handler in FortiAnalyzer to raise alerts for incident response related to attacks that attempt to leverage the Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities. A report is also provided to gain historical visibility into logs. Note that this article provides alpha files which are automatically generated. The article will be continually updated as more information becomes available.
Scope	This article contains the files necessary to load an event handler and report into FortiAnalyzer for either a Fabric ADOM or a FortiGate ADOM. The Fabric report and event handler leverage logs from other Fortinet products that can be used to detect the attack in addition to FortiGate logs. For more information about this attack, see the relevant FortiGuard Outbreak Alert.
Solution	What is included in Fortinet_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities.zip: Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_event-handler.json This event handler helps identify Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities detected by FortiGates and other Fortinet products. Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_report.dat This report displays the findings on Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities attacks from FortiGates and other Fortinet products.  fgt_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_event-handler.json The event handler for FortiGate ADOMs is configured for FortiGate logs only. fgt_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_report.dat The report for FortiGate ADOMs includes FortiGate charts only. Steps Download the Fortinet_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities.zip file (contains 4 files). Unzip Fortinet_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities.zip. Import Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_event-handler.json or fgt_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_event-handler.json event handler: Choose an ADOM (if ADOMs are enabled). The ADOM may have the Fabric or FortiGate type. Choose the FortiSOC module.  Select Event Handler List. Select the Import option under More. Select the appropriate event handler depending on the ADOM type. Result: The event handler is enabled and will be triggered if the appropriate logs are received following the import of the event handler.  Edit the event handler to customize the notification section. Import Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_report.dat or fgt_Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_report.dat to Reports: Choose an ADOM (if ADOMs are enabled). The ADOM may have the Fabric or FortiGate type. Choose the Report module. Select the Import option under 'More'. Select the appropriate file for the ADOM type to add the report to the ADOM. Result:  The Adobe ColdFusion Deserialization of Untrusted Data Vulnerabilities_report can be run anytime as determined by an admin user.