Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server that implements both UPnP and SSDP protocols. The binary is usually named wscd or mini_upnpd and is the successor to miniigd. The server is vulnerable to a stack buffer overflow vulnerability that is present due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. Successful exploitation of this vulnerability allows remote unauthenticated attackers to gain arbitrary code execution on the affected device.
|realtek:realtek_jungle_sdk||realtek realtek jungle sdk||3.4.14b|
Realtek Jungle SDK Buffer Overflow (CVE-2021-35392; CVE-2021-35393; CVE-2021-35395)
Multiple Flaws Affecting Realtek Wi-Fi SDKs Impact Nearly a Million IoT Devices