A ZTE Wi-Fi router similar in family to the ZXHN H168N affected by CVE-2021-21735

CVE-2021-21735: From Unauthenticated Information Leak to Full Admin Compromise on ZTE ZXHN H168N

A deep dive into CVE-2021-21735 on the ZTE ZXHN H168N home gateway, where two unauthenticated wizard endpoints (wizard_pppoe_lua.lua and wizard_wlan_config_lua.lua) leaked PPPoE identifiers, SSID data, and Wi-Fi passphrases — converting a “low-severity” information disclosure into a full administrative and WLAN takeover path. Includes the root-cause analysis, request/response patterns, the disclosure timeline, and the ZTE vs. NVD severity split.

Reverse engineering Realtek RTL8761B* Bluetooth chips, to make better Bluetooth security tools & classes

Reverse engineering Realtek RTL8761B* Bluetooth chips, to make better Bluetooth security tools & classes

Bloodied (but not broken) by the ordeal, I achieved my goals and stretch goals. And given that there are no public descriptions of how Realtek Bluetooth chips work, I look forward to sharing hitherto-unknown information about how to navigate and understand these mostly-16-bit-MIPS-code systems. And I’ll discuss how their ROM-“patch”ing firmware update mechanism works, how you can patch it to change its code too, and the security implications thereof.