CVSS: 10.0EPSS: 3%CPEs: 1EXPL: 1CVE-2021-35393
https://notcve.org/view.php?id=CVE-2021-35393
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 Jungle SDK versiones v2.x hasta v3.4.14B, proporciona un servidor "WiFi Simple Config" que implementa los protocolos UPnP y SSDP. • https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf • CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 96%CPEs: 1EXPL: 1CVE-2021-35394 – Realtek Jungle SDK Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2021-35394
Realtek Jungle SDK version v2.x up to v3.4.14B provides a diagnostic tool called 'MP Daemon' that is usually compiled as 'UDPServer' binary. The binary is affected by multiple memory corruption vulnerabilities and an arbitrary command injection vulnerability that can be exploited by remote unauthenticated attackers. SDK de Realtek Jungle versiones v2.x hasta v3.4.14B, proporciona una herramienta de diagnóstico llamada "MP Daemon" que normalmente es compilado como binario "UDPServer". El binario está afectado por múltiples vulnerabilidades de corrupción de memoria y una vulnerabilidad de inyección de comandos arbitrarios que puede ser explotada por atacantes no autenticados remotos. RealTek Jungle SDK contains multiple memory corruption vulnerabilities which can allow an attacker to perform remote code execution. • https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf https://www.securityfocus.com/archive/1/534765 •
CVSS: 10.0EPSS: 96%CPEs: 1EXPL: 1CVE-2021-35395 – Realtek AP-Router SDK Buffer Overflow Vulnerability
https://notcve.org/view.php?id=CVE-2021-35395
Realtek Jungle SDK version v2.x up to v3.4.14B provides an HTTP web server exposing a management interface that can be used to configure the access point. Two versions of this management interface exists: one based on Go-Ahead named webs and another based on Boa named boa. Both of them are affected by these vulnerabilities. Specifically, these binaries are vulnerable to the following issues: - stack buffer overflow in formRebootCheck due to unsafe copy of submit-url parameter - stack buffer overflow in formWsc due to unsafe copy of submit-url parameter - stack buffer overflow in formWlanMultipleAP due to unsafe copy of submit-url parameter - stack buffer overflow in formWlSiteSurvey due to unsafe copy of ifname parameter - stack buffer overflow in formStaticDHCP due to unsafe copy of hostname parameter - stack buffer overflow in formWsc due to unsafe copy of 'peerPin' parameter - arbitrary command execution in formSysCmd via the sysCmd parameter - arbitrary command injection in formWsc via the 'peerPin' parameter Exploitability of identified issues will differ based on what the end vendor/manufacturer did with the Realtek SDK webserver. Some vendors use it as-is, others add their own authentication implementation, some kept all the features from the server, some remove some of them, some inserted their own set of features. • https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf •