Introduction In today’s world, who doesn’t need to guard against theft and intruders? Cloud security cameras have become increasingly popular. However, despite being labeled as “security” cameras, their actual security may not be very robust. The Motorola Focus 73 outdoor security camera is a case in point. The Motorola Focus 73 camera is an outdoor … Read more
On various second-hand websites, you can often find boards that lack accompanying documentation (such as schematics), and these boards are relatively inexpensive. If purchased in bulk, they can be used as development boards. The first challenge is to “reverse engineer” the schematics for subsequent routine development. Currently, there are two software tools that can assist … Read more
Special Statement All content in this article is for learning and communication purposes only and cannot be used for any commercial or illegal purposes. Otherwise, the consequences are at your own risk. If there is any infringement, please contact the author for immediate deletion! Due to my limited ability, if there are any inaccuracies in … Read more
AuthorForum Account:FinchK 0x0 Introduction As a pure beginner in reverse engineering, I have been involved in it for about two months. I have a Xiaomi Mi Band 4 NFC version, which has the built-in Xiao Ai assistant that can engage in voice conversations to control smart home devices and perform operations such as setting alarms. … Read more
Background In mid-January, ZDI announced the rules for the 2017 competition, which included a substantial reward for teams that could break VMware and achieve virtual machine escape. VMware is no longer a new target; it was identified as a target in 2016. As a target, VMware has undergone various attacks, with many points of attack … Read more
About Pwndbg Pwndbg is a GDB plugin specifically designed for security vulnerability analysis. This tool greatly simplifies the difficulty researchers face when using GDB for vulnerability analysis and debugging. It primarily focuses on the functionalities required by software developers, hardware hackers, reverse engineers, and vulnerability analysts. The original GDB is not suitable for reverse engineering … Read more
About Pwndbg Pwndbg is a GDB plugin specifically designed for security vulnerability analysis. This tool significantly simplifies the difficulty researchers face when using GDB for vulnerability analysis and debugging. It mainly focuses on the features required by software developers, hardware hackers, reverse engineers, and vulnerability analysts. The original GDB is not suitable for reverse engineering … Read more
1. Physical Memory Layout Formula When you see an address like 0B3F:0100 in debug, remember the physical address calculation formula: For example, 0B3F*10h+0100=0C3F0. This formula explains why CS:IP always points to strange memory locations (a legacy black magic of old programmers). 2. Core Command Anatomy Command Prototype: -a [address]Parameter Description: If address is not filled, … Read more
This article is an excellent piece from the Kanxue Forum. Kanxue Forum Author ID: Feng Yi Ying Han It seems that there is very little content related to the CoAP protocol on domestic security forums like Kanxue, and the CVEs mainly involve vulnerabilities in the CoAP protocol library. Therefore, I will organize and record my … Read more
1 Problem-Solving Ideas The final number of solutions for this problem is 42, as the difficulty level is not high and generally meets expectations. The problem is coded in Rust, and it was decided to remove symbols without providing the source code the night before the competition. This not only made it very difficult for … Read more