CVE-2026-16232 CrowdStrike LogScale · LogScale

Detect Check Point SmartConsole Improper Authentication (CVE-2026-16232) in CrowdStrike LogScale

Detects exploitation attempts and indicators of the CVE-2026-16232 Improper Authentication vulnerability (CWE-287) in Check Point SmartConsole management client/server communications, added to CISA KEV. Attackers exploiting this flaw can bypass authentication checks to gain unauthorized access to SmartConsole management sessions, potentially allowing manipulation of security policy, log access, or lateral movement into the management plane.

MITRE ATT&CK

Tactic
Initial Access Privilege Escalation Defense Evasion Credential Access

LogScale Detection Query

CrowdStrike LogScale (LogScale)
cql 
#event_simpleName=NetworkConnectIP4 OR #event_simpleName=NetworkConnectIP6
| RemotePort=19009 OR RemotePort=18190 OR RemotePort=443
| ProcessName=/(?i)(cpmiserver|cpm|smartconsole)/
| stats count(aid) as attempt_count by ComputerName, RemoteAddressIP4, RemotePort
| where attempt_count >= 3
high severity low confidence

CrowdStrike CQL query identifying repeated endpoint connections to Check Point SmartConsole management processes/ports, useful for correlating endpoint-side indicators of CVE-2026-16232 exploitation attempts against management infrastructure.

Data Sources

CrowdStrike Falcon NetworkConnect events

Required Tables

NetworkConnectIP4NetworkConnectIP6

False Positives & Tuning

  • Legitimate SmartConsole administrator workstations connecting routinely to management ports
  • Internal vulnerability scanning tools authorized to probe management services
  • Process name matches from unrelated third-party software sharing similar naming

Other platforms for CVE-2026-16232

Microsoft Sentinel (KQL) Splunk (SPL) Elastic Security (Elastic) IBM QRadar (QRadar) Sumo Logic CSE (Sumo) Google Chronicle (YARA-L) All platforms (combined) →

Testing Methodology

Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.

  1. Test 1Simulate unauthenticated connection attempt to SmartConsole management port

    Expected signal: Firewall/CEF log entry showing an inbound TCP connection to port 19009 from the test host with no corresponding authenticated session record

  2. Test 2Generate synthetic log event with bypass/anonymous keyword

    Expected signal: Log ingestion pipeline forwards the CEF event into the SIEM index/table used by the detection (CommonSecurityLog or equivalent)

  3. Test 3Simulate repeated management port probing from single source

    Expected signal: Multiple firewall log entries recording repeated connections to port 18190 from the same source IP within a one-hour window

Last updated: 2026-07-23 Research depth: standard
References (4)

Response Playbook

Triage

  1. Identify all SmartConsole/management server instances reachable from the source IP(s) flagged and confirm current patch level against sk185169
  2. Review authentication logs on the Check Point Security Management Server (SMS) for the affected time window to determine if any session was established without valid credentials
  3. Cross-reference flagged source IPs against known-good administrator IP allowlists and VPN egress ranges to rule out authorized access
  4. Check for any policy install, object modification, or log purge events immediately following the suspicious session to gauge attacker actions

Containment

  1. Restrict SmartConsole and management API access to a trusted management network/jump host via firewall rules, blocking direct internet or untrusted VLAN exposure
  2. Rotate all SmartConsole administrator credentials and API keys, and force re-authentication of all active sessions on the management server
  3. Apply the vendor-provided hotfix/patch referenced in sk185169 to the affected SmartConsole/Security Management Server immediately

Evidence Collection

  1. Export Check Point SMS audit logs and $FWDIR/log data covering the incident window for offline analysis
  2. Collect network captures or CEF/syslog exports showing connections to management ports (19009, 18190, 443) from the suspected source
  3. Preserve SmartConsole session tables and any configuration/policy diff snapshots taken before and after the suspected exploitation window

Escalation Criteria

  • !Any confirmed unauthorized policy or object change on the Security Management Server following a suspicious session
  • !Evidence of credential harvesting, new administrator account creation, or privilege escalation within the management console
  • !Successful exploitation confirmed on an internet-facing SmartConsole/SMS instance, given active KEV/CISA BOD-26-04 exploitation status

Investigation Guide

Related Techniques

[object Object][object Object][object Object]

Forensic Artifacts

  • >Check Point SMS $FWDIR/log audit records and cpm process logs showing session establishment without corresponding credential validation entries
  • >SmartConsole client-side connection logs and cached session tokens on administrator workstations
  • >Firewall/CEF logs showing inbound connections to TCP 19009/18190/443 from unexpected or external source IPs

Tuning Guidance

Baseline normal SmartConsole administrator connection sources (jump hosts, VPN ranges, known admin workstation IPs) and add them as allowlist exceptions to reduce false positives. Because Check Point CEF field mappings vary by log exporter configuration, validate that the username/user field is reliably populated in your environment before relying on the 'missing user' heuristic; if the field is unreliable, weight detection more heavily on the explicit bypass/unauthenticated/anonymous keyword matches and connection volume thresholds instead.

Hunting Queries

Broad hunting query surfacing high-volume or unattributed connections to Check Point management ports over the past hour, to identify reconnaissance or repeated exploitation attempts against SmartConsole beyond the primary detection's stricter thresholds.

Hunting — KQL
kql 
CommonSecurityLog
| where DeviceVendor has "Check Point"
| where DestinationPort in (19009, 18190, 443)
| summarize ConnCount = count(), Users = make_set(SourceUserName) by SourceIP, DestinationIP, bin(TimeGenerated, 1h)
| where ConnCount > 20 or (Users has "")
| order by ConnCount desc
Hunting — SPL
spl 
index=network_firewall sourcetype="cef" vendor="Check Point" dest_port IN (19009,18190,443)
| bin _time span=1h
| stats count as conn_count values(user) as users by _time, src, dest
| where conn_count > 20 OR isnull(users)
| sort -conn_count

Atomic Red Team Tests

Test 1 Simulate unauthenticated connection attempt to SmartConsole management port
linux

Uses netcat to establish a raw TCP connection to the SmartConsole management port without completing any Check Point authentication handshake, simulating reconnaissance/exploitation traffic for detection validation in a lab environment.

Command

bash 
nc -vz -w 3 <lab-smartconsole-host> 19009

Cleanup

bash 
No persistent state created; no cleanup required.

Expected Telemetry

Firewall/CEF log entry showing an inbound TCP connection to port 19009 from the test host with no corresponding authenticated session record

Expected Detection

KQL/SPL rule flags the connection due to destination port match combined with missing user attribution within the 5-minute bin

Test 2 Generate synthetic log event with bypass/anonymous keyword
linux

Injects a crafted CEF-formatted log line containing SmartConsole and 'unauthenticated' keywords into a local syslog test file to validate keyword-based detection logic end-to-end through the log pipeline.

Command

bash 
logger -p local0.info 'CEF:0|Check Point|SmartConsole|R81|100|Login|5|src=203.0.113.10 dst=192.0.2.5 dpt=19009 msg=unauthenticated session established'

Cleanup

bash 
Remove the injected line from local syslog/test log file if persisted to disk, e.g. sed -i '/unauthenticated session established/d' /var/log/syslog

Expected Telemetry

Log ingestion pipeline forwards the CEF event into the SIEM index/table used by the detection (CommonSecurityLog or equivalent)

Expected Detection

Detection rule matches on the 'unauthenticated' keyword within the SmartConsole-related event and generates an alert

Test 3 Simulate repeated management port probing from single source
windows

Performs multiple rapid successive connection attempts to the SmartConsole management ports from a single source IP to validate volume-based hunting query thresholds.

Command

powershell 
1..25 | ForEach-Object { Test-NetConnection -ComputerName <lab-smartconsole-host> -Port 18190 }

Cleanup

powershell 
No persistent state created; no cleanup required.

Expected Telemetry

Multiple firewall log entries recording repeated connections to port 18190 from the same source IP within a one-hour window

Expected Detection

Hunting query flags the source IP due to ConnCount exceeding the 20-connection threshold within the bin period

Related Detections

Tactic Hubs

TA0001Initial AccessTA0004Privilege EscalationTA0005Defense EvasionTA0006Credential Access

Related Techniques

T1078Valid AccountsT1190Exploit Public-Facing ApplicationT1556Modify Authentication Process

Same Tactic: Initial Access

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