Typically, a user must log in to view the camera stream or change settings. However, researchers discovered that by crafting a specific HTTP packet—specifically manipulating the Referer header and injecting a malicious string into the UID parameter—the camera’s web server would fail to parse the authentication request correctly.
This issue affects the following models and firmware versions: [e.g., Dahua IPC-HX2XXX , Generic IoT Cameras]. network camera networkcamera patched
Immediately change the default admin password to a strong, unique password. Typically, a user must log in to view
| Measure | Why it matters | |---------|----------------| | | Place camera on a no-internet VLAN, blocking all outbound P2P/cloud traffic. | | Firewall egress rules | Allow only NTP and your NVR/DVR IP; deny everything else. | | Disable UPnP & P2P | Even after patching, these are high-risk features. | | Replace TLS cert | Generate a unique, strong cert per camera. | | Monitor for beaconing | Check for unexpected DNS or HTTPS calls to vendor domains. | | Use VPN for remote viewing | Never port-forward the camera’s web interface or RTSP. | Immediately change the default admin password to a