Detect Digiever DS-2105 Pro Missing Authorization Exploitation (CVE-2023-52163) in Elastic Security
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
Elastic Detection Query
sequence by destination.ip with maxspan=5m
[network where event.category == "network" and
destination.port in (80, 443, 8080, 8443, 554, 37777) and
(
url.path like~ "*/cgi-bin/*" or
url.path like~ "*/admin/*" or
url.path like~ "*/system/*" or
url.path like~ "*/config/*" or
url.path like~ "*/setup*"
) and
not (http.request.headers.authorization : "*")]
[network where event.category == "network" and
destination.port in (80, 443, 8080, 8443, 554, 37777) and
http.response.status_code in (200, 201, 204)]
| where #sequence >= 2EQL sequence detection identifying unauthenticated requests to sensitive NVR administrative paths that receive successful HTTP responses, indicating the missing authorization check is being exploited successfully.
Data Sources
Required Tables
False Positives & Tuning
- Internal health monitoring services that do not pass authentication headers to embedded device APIs
- Legacy integration scripts designed before authentication was enforced on the target device class
- Load balancer health checks targeting device status endpoints
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
Unlock Pro Content
Get the full detection package for CVE-2023-52163 including response playbook, investigation guide, and atomic red team tests.