#exploit-development

Cybercriminals deployed AI-generated exploit code targeting a zero-day two-factor authentication bypass flaw in open-source web administration software for planned mass exploitation.

Source: Google Threat Intelligence Group

This is just a little code snippet (in Python) to convert a memory address to little endian format.

#!/usr/bin/python import sys,struct,binascii,re,os script = os.path.basename(__file__) if len(sys.argv) < 2: print "Usage: ./%s <mem addr>\n ./%s 0x41424344" % (script, script) sys.exit(1) eip = int(sys.argv[1],0) # e.g. 0x41424344 def format_eip(i): return struct.pack('<L', i) reversed = format_eip(eip) # This is just to pretty print the hex in the terminal (i.e. # print as '41 41' instead of auto-formatting as ASCII 'A A'). # Just use 'reversed' directly in buffers reversed_bin = binascii.hexlify(reversed) print "\nin little-endian: %s" % reversed_bin # Print again, this time as a shellcode ready string with \x's formatted_split = "" split = re.findall('..',reversed_bin) for i in split: i=r'\x'+i formatted_split += i print " shellcode ready: %s \n" % formatted_split

This is what it looks like when it runs:

Most of this code is just there for formatting it correctly for view from the terminal as you run the script. If you were using the returned value directly in your payload, you'd need only do something such as:

It’s nearly time..! In just a few days I’ll be attempting the Offensive Security Certified Expert (OSCE) exam. Yikes. I’m already certain that this is going to be the single most difficult challenge I’ve undertaken personally, professionally, and academically, to date. 

Given the above, and that the exam goes for 72 hours (48 hours + 24 hours reporting), I’ve been developing a series of scripts and cheatsheets so that I can make the most of my exam time, and maybe even prevent a few little mistakes caused by sleep deprivation.