Detect CVE-2025-40602 - SonicWall SMA1000 Missing Authorization Exploitation in Sumo Logic CSE
Detects exploitation attempts targeting CVE-2025-40602, a missing authorization vulnerability (CWE-862) combined with execution with unnecessary privileges (CWE-250) in SonicWall SMA1000 appliances. This KEV-listed vulnerability allows unauthenticated or insufficiently privileged attackers to access restricted resources or execute privileged operations. Detection focuses on anomalous HTTP requests to SMA1000 management interfaces, unexpected authentication bypass patterns, and post-exploitation activity indicative of privilege escalation on SMA gateway infrastructure.
MITRE ATT&CK
Sumo Detection Query
_sourceCategory=network/firewall OR _sourceCategory=sonicwall/sma
| where !(isNull(dest_port)) and dest_port in ("443","8443","80","8080")
| where uri_path matches "*appliance*" or uri_path matches "*management*" or uri_path matches "*/admin*" or uri_path matches "*/api/*" or uri_path matches "*/vpn*" or uri_path matches "*/config*"
| where status_code in ("200","201","204")
| timeslice 5m
| stats count as request_count, dcount(uri_path) as distinct_paths, values(uri_path) as accessed_paths, values(status_code) as status_codes by src_ip, dest_ip, _timeslice
| where request_count >= 3
| sort by request_count desc
| fields _timeslice, src_ip, dest_ip, request_count, distinct_paths, accessed_paths, status_codesSumo Logic query for detecting CVE-2025-40602 exploitation by monitoring successful HTTP access to SonicWall SMA1000 privileged endpoints, surfacing source IPs with repeated access to administrative paths.
Data Sources
Required Tables
False Positives & Tuning
- Administrators using automation or scripts to configure SMA1000 devices
- Authorized vulnerability scanners performing SonicWall-specific assessments
- Monitoring agents with API access to SMA1000 for availability checks
- DevOps pipelines deploying configuration changes via SMA1000 management APIs
Other platforms for CVE-2025-40602
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.
- Test 1SMA1000 Admin Endpoint Probe - Authorization Bypass Simulation
Expected signal: Network logs showing HTTP GET requests from the test host to the SMA1000 target IP on port 443, with URL paths matching /appliance/, /management/, /admin/, and /api/. HTTP response codes of 200 on any path indicate potential missing authorization.
- Test 2SMA1000 Configuration Extraction via Unauthorized API Access
Expected signal: Network logs showing HTTP GET requests to multiple /api/v1/ and /appliance/ paths with JSON Accept headers, followed by data transfer bytes indicating response body content was returned. File creation events in /tmp/sma1000_test/ on the attacking host.
- Test 3SMA1000 Privilege Escalation Test via Unauthenticated Admin Action
Expected signal: Network logs showing HTTP POST request to /api/v1/users endpoint with JSON body containing user creation parameters. If vulnerable, response body will contain user object with assigned ID. Authentication logs on SMA1000 should NOT show a preceding valid authentication event from the source IP.
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