Detect Digiever DS-2105 Pro Missing Authorization Exploitation (CVE-2023-52163) in Sumo Logic CSE
Detects exploitation of CVE-2023-52163, a missing authorization vulnerability (CWE-862) in Digiever DS-2105 Pro NVR devices. This KEV-listed vulnerability allows unauthenticated attackers to access restricted functionality or administrative interfaces without proper credential validation. Threat actors actively exploit exposed NVR devices for initial access, lateral movement, and persistence in OT/IoT environments.
MITRE ATT&CK
Sumo Detection Query
_index=network OR _index=proxy
| where %"destination.port" in ("80", "443", "8080", "8443", "554", "37777")
| where matches(%"url.path", "(?i).*(cgi-bin|admin|system|config|setup|api).*")
| where isNull(%"http.request.headers.authorization") or isEmpty(%"http.request.headers.authorization")
| timeslice 5m
| stats count as request_count, dcount(%"source.ip") as unique_sources, values(%"url.path") as paths by %"destination.ip", _timeslice
| where request_count > 5 or unique_sources > 2
| if (request_count > 20, "high", "medium") as severity
| sort by request_count descSumo Logic query surfacing clusters of unauthenticated requests to NVR administrative URL paths, grouped by destination IP in 5-minute windows to distinguish active exploitation from background scanning noise.
Data Sources
Required Tables
False Positives & Tuning
- Automated device inventory tools that enumerate management interfaces without credential injection
- Internal SIEM connectors polling device syslog endpoints without HTTP auth
- Vendor-supplied management software with non-standard authentication mechanisms
Other platforms for CVE-2023-52163
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 1Unauthenticated Admin Endpoint Enumeration
Expected signal: HTTP GET requests to /cgi-bin/ and /admin/ paths from the test host IP to the NVR device on port 80, with no Authorization header present in the HTTP request headers
- Test 2RTSP Stream Access Without Authentication
Expected signal: Network connections to TCP/554 (RTSP) and TCP/80 from test host; HTTP requests to /cgi-bin/snapshot.cgi without authentication headers; potential RTSP DESCRIBE request in network capture
- Test 3Configuration Extraction via Unauthenticated API
Expected signal: Multiple HTTP GET requests to configuration and backup endpoints without Authorization headers; file download activity if 200 responses received; DNS lookups for NVR hostname from test system
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Get the full detection package for CVE-2023-52163 including response playbook, investigation guide, and atomic red team tests.