rappel intro

Rappel is a wonderful for understanding the basics of assembly language. Initially assembly language is quite challenging to understand for the programmer as all these registers are quite confusing. Specially it becomes more difficult because the programmer is now limited to using only handful of variables where as in other languages, the number declaring variable appears to be unlimited. After we download and run the rappel, we can see that

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basic gdb

Disassemble a function disassemble vuln Disassemble at address disassemble 0x400566 display set disassembly-flavor intel functions to display all the functions info func flags To view the flags, use the command below: info reg eflags breaks break at function break func stack Display stack stack view 30 rows of stack stack 30 source https://cheatography.com/superkojiman/cheat-sheets/gdb-pwndbg/

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this site

It has been a long time since I was planning for a personal website so that I can give my two cents back to community. I have learnt so much from the community that words cannot measure it. So I hope that my small contribution will help others and they will be able to achieve great tech I have built this site using Hugo Framework. It seemed easy use and understand.

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log4j vulnerability is a vulnerability which can have significant impact on the security of the system. It gives remote command execution on the target system which can cause significant damage on the system. This attack vector has been carried out by various threat actors and they were able to breach various servers and execute commands. It is strongly advised that system administrators update their systems as soon as possible. summary On December 10th, 2021, the National Vulnerability Database (NVD) published the CVE-2021-44228 documenting a vulnerability in the Apache log4j library Java Naming and Directory Interface (JNDI) lookup feature allowing for remote code execution by an attacker who is able to manipulate log messages.

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Author's picture

rezaur rahman

just thinking out loud to help others

cybersecurity researcher