Set up SIEM for Integration

Set up SIEM for Integration

1. Configure the SIEM server to accept the following device attributes from IoT Security.

   The field names in the first three rows are predefined, standard names. The field names in the remaining rows must be defined for IoT Security device attributes.

   	Device Attribute (IoT Security)	SIEM Field Name
   1	IP Address	dvc
   2	MAC Address	dvcmac
   3	Hostname	dvchost
   4	Profile	cs1Label=Profile
   5	Category	cs2Label=Category
   6	Profile Type	cs3Label=Profile
   7	Vendor	cs4Label=Vendor
   8	Model	cs5Label=Model
   9	VLAN ID	cs6Label=Vlan
   10	Site	cs7Label=Site
   11	Risk Score	cs8Label=RiskScore
   12	Risk Level	cs9Label=RiskLevel
   13	Subnet	cs10Label=Subnet
   14	Number of Critical Alerts	cs11Label=NumCriticalAlerts
   15	Number of Warning Alerts	cs12Label=NumWarningAlerts
   16	Number of Caution Alerts	cs13Label=NumCautionAlerts
   17	Number of Info Alerts	cs14Label=NumInfoAlerts
   18	First Seen Date	cs15Label=FirstSeenDate
   19	Confidence Score	cs16Label=ConfidenceScore
   20	OS Group	cs17Label=OsGroup
   21	OS/Firmware Version	cs18Label=OsFirmwareVersion
   22	OS Support	cs19Label=OsSupport
   23	OS End of Support	cs20Label=OsEndOfSupport
   24	Serial Number	cs21Label=SerialNumber
   25	Endpoint Protection	cs22Label=EndpointProtection
   26	Network Location	cs23Label=NetworkLocation
   27	AET	cs24Label=AET
   28	DHCP	cs25Label=DHCP
   29	Wired or Wireless	cs26Label=WireOfWireless
   30	SMB	cs27Label=SMB
   31	Switch Port	cs28Label=SwitchPort
   32	Switch Name	cs29Label=SwitchName
   33	Switch IP Address	cs30Label=SwitchIp
   34	Services	cs31Label=Services
   35	Server	cs32Label=IsServer
   36	NAC Profile	cs33Label=NAC_Profile
   37	NAC Profile Source	cs34Label=NAC_ProfileSource
   38	Access Point IP Address	cs35Label=AccessPointIp
   39	Access Point Name	cs36Label=AccessPointName
   40	SSID	cs37Label=SSID
   41	Authentication Method	cs38Label=AuthMethod
   42	Encryption Cipher	cs39Label=EncryptionCipher
   43	AD Username	cs40Label=AD_Username
   44	AD Domain	cs41Label=AD_Domain
   45	Applications	cs42Label=Applications
   46	Tags	cs43Label=Tags
   47	OS Combined	cs44Label=os_combined

   IoT Security supplies Cortex XSOAR with device attributes, and XSOAR converts them into Common Event Format (CEF) before sending them to the SIEM server.

   Example of the device attributes for an Apple iPad in CEF:

   "INFO:siem-syslog:CEF:0|PaloAltoNetworks|PANWIOT|1.0|asset|Asset Identification|1|dvc=10.1.1.39 dvcmac=cc:d2:81:33:bd:6a dvchost=iPad cs1Label=Profile cs1=iPad cs2Label=Category cs2=Smartphone or Tablet cs3Label=Type cs3=Non_IoT cs4Label=Vendor cs4=Apple Inc. cs5Label=Model cs5=iPad11,1 cs6Label=Vlan cs6=330 cs7Label=Site cs7=test-1117-04 cs8Label=R5iskScore cs8=20 cs9Label=RiskLevel cs9=Low cs10Label=Subnet cs10=10.1.1.0/24 cs15Label=FirstSeenDate cs15=2020-04-07T22:04:20.000Z cs16Label=ConfidenceScore cs16=95 cs17Label=OsGroup cs17=iOS cs22Label=EndpointProtection cs22=not_protected cs25Label=DHCP cs25=Yes cs26Label=WireOrWireless cs26=wireless cs42Label=Applications cs42=Zoom,iCloud,iTunes cs44Label=os_combined cs44=iOS"

   Example of an alert about an outdated version of Chrome:

   "CEF:0|PaloAltoNetworks|PANWIOT|1.0|PaloAltoNetworks Alert:policy_alert|Outdated Chrome version used by IoT device|2|dvcmac=14:91:38:b5:22:18 src=10.1.20.14 shost=unknown dhost=UNKNOWN URL fileId=0oakC30 fileType=alert rt=2020-12-30T23:07:24.000Z deviceCustomDate1=1609369890526 cs1Label=Description cs1=The usage of an outdated Chrome version has been detected on this device. Using older versions of a web browser can expose your device to security risks. cs2Label=Values cs2=[{'label': 'user agent', 'value': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36'}]"

   Example of a vulnerability test:

   "INFO:siem-syslog:CEF:0|PaloAltoNetworks|PANWIOT|1.0|vulnerability|Vulnerability Test - Medium|1|dvc=10.1.3.54 dvcmac=64:16:7f:4c:d1:53 dvchost=Polycom_64167f4cd153 cs1Label=Profile cs1=Polycom Video Conferencing Device cs2Label=Category cs2=Video Audio Conference cs1Labe3=Profile cs3=Office cs4Label=Vendor cs4=Polycom cs5Label=Model cs5=Trio8800 cs8Label=RiskScore cs8=26 cs9Label=RiskLevel cs9=Low cs11Label=vulnerabilityName cs11=Vulnerability Test - Medium cs12Label=DetectionDate cs12=2020-12-23T23:59:59.000Z cs17Label=OsGroup cs17=Embedded cs19Label=OsSupport cs19=Embedded"
2. Note the IP address of the SIEM server and the port number on which it listens for syslog messages.

   You will need this information when configuring the SIEM instance in Cortex XSOAR.