pwntools | CTF framework and exploit development library | Hacking library
kandi X-RAY | pwntools Summary
kandi X-RAY | pwntools Summary
Pwntools is a CTF framework and exploit development library. Written in Python, it is designed for rapid prototyping and development, and intended to make exploit writing as simple as possible.
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Top functions reviewed by kandi - BETA
- Attaches target to target .
- Runs a process .
- Sorts the registers .
- Debug debugging .
- Dump a string in hex .
- Copy data to dst .
- Perform a flatFlatten using the given arguments .
- For debugging purposes only
- Initialize the class .
- Display options .
pwntools Key Features
pwntools Examples and Code Snippets
Lines of Code : 66
License : No License
Copy#-- Factory --#
uio.open('/path/to/file', [mode]) # open local file
uio.tcp(addr, port) # connect to a remote server
uio.local(port) # connect to localhost
uio.stdio # wrapped stdin and stdout
uio.spawn(cmd) # spawn a process [WIP]
uio.bind(ip, port) >>> from pwntrace import *
>>> p = ltrace("/bin/ls", ["fflush", "fclose"])
[x] Starting local process '/usr/bin/ltrace'
[+] Starting local process '/usr/bin/ltrace': pid 8737
>>> p.recv()
[*] Process '/usr/bin/ltrace' stopp Suppose the 6 arguments are in s0-s5:
move $a0, $s0 # and 0($fp) is reserved for this on the stack
move $a1, $s1 # and 4($fp) is reserved for this on the stack
move $a2, $s2 # and 8($fp)...
move $a3, $s3 # and 12($fp)...
sw $s4, 16($fp) def instructions():
print('***************************************************************')
print('Welcome to: Friday the 13th Text Based Game')
print('Move Between Rooms, Collect all 6 items')
print('Once you have all 6 iprint(rooms[location]['Item'])
def get_room_item(rooms, location):
return rooms[location]['Item']
if 'Item' in rooms[location]:
def foo(i):
print(i, end=" ")
for _ in range(i):
foo(i - 1)
return
print(foo(3)) # 3 2 1 0 1 0 2 1 0 1 0 2 1 0 1 0 hell lot numbers!
import math
def MathChallenge(num, count):
if nuclass Fight(commands.Cog):
testServerID = 948362430256410685
char_speed = {
'Dre': 3,
'Henry': 4,
'Sonic': 10,
'Nub': 3,
'God': 5,
'Pewdiepie': 6,
}
def swLookAt(self,eyex,eyey,eyez,atx,aty,atz,upx,upy,upz):
# [...]
mylookat=np.matmul(M,T).transpose()
return mylookat
def swPerspective(self,fovy,aspect,near,far):
per=np.zeros((4,4))
def movelist(state):
for i in range(state[0]):
yield (i, state[1], state[2])
for i in range(state[1]):
yield (state[0], i, state[2])
for i in range(state[2]):
yield (state[0], state[1], i)
def winnningmfull_time = t.stop()
import astar
>>> for i in range(0, 4):
... print(i)
...
0
1
2
3
>>>
list.append(astar.full_time) # append inserts at thCommunity Discussions
Trending Discussions on pwntools
QUESTION
this thing could easily be solves by writing a function that builds the string that I want. But it would be a bit nicer, and a bit more concise if there is something that I can just import and use, it seems lik there should be. I have a python script that uses python pwntools.
It reads a memory leak from a executable that consists of a string that basically just looks like this:
...ANSWER
Answered 2022-Feb-04 at 10:18python3 itself is sufficent for that task
QUESTION
I created a new Conda Env with:
...ANSWER
Answered 2021-Oct-19 at 14:15Using mamba, the issue is more clear (I have added pwntools to the environment creation line:
QUESTION
i am working on reverse shell project using pwn as Client/Server instead of using socket because it's more comfortable in receiving (recvuntil) messages ,but when ever i tried to convert it to EXE using pyinstaller to onefile it ended up failing , generating a corrupted exe or generate an exe that keeps giving Errors ,i even have tested this program on console first.
so is there a way to make it work or even to make my own pyinstaller (if i have to)?
i can't think of better title than this ,so if you have better just comment it
my venv conda python version is 3.9.7
Here is a little Server Code (this is just for testing):
ANSWER
Answered 2021-Oct-15 at 01:33After Three days of debugging i can tell that there is two steps for the solution to work:
firstly: Try to reinstall pwntools package by removing it firstly and then install it
QUESTION
Out of the blue, my python installation seems to have broken. When trying to run a python script, I get the following...
...ANSWER
Answered 2021-Apr-12 at 21:21I was able to update six by doing a wget https://raw.githubusercontent.com/benjaminp/six/master/six.py in ~/.local/lib/python3.9/site-packages. This solved the problem.
QUESTION
I'm doing a buffer overflow exercice with gdb and python(3.9) pwntools on kali.
I'm working with a 32bits ELF so my context is set this way :
context(arch="i386", os="linux")
I'm at the step I have to calculate offset between addresses functions and the result in python is driving me crazy.
In gdb : p 0xf7e280e0 + 0xefdc8000 = 0xe7bf00e0
In my python script : 0xf7e280e0 + 0xefdc8000 = 0x1e7bf00e0
Can you help me to understand why the result is not the same?
Thanks :)
...ANSWER
Answered 2021-Feb-11 at 15:35Can you help me to understand why the result is not the same?
Python performs arithmetic with arbitrary precision. If you add two 32-bit numbers, the result could overflow and produce a number which does not fit in 32 bits.
Is there any way to force this?
Assuming by "force this" you mean: force Python to compute a 32-bit number, sure: you just need to mask off the bits you don't want:
QUESTION
I am attempting to create a buffer-overflow on a simple x64 C binary with all protections enabled (i.e. ASLR, canary, PIE, NX, Full RelRO - disabled Fortify). I am using an (updated) x64 Kali Linux 2020.3 distro (in vmware using the vmware image from the official offensive security website). I am compiling the program as root and I am enabling the SUID bit to access the program with root privilidges from an unpriviledged account. The code of the vulnerable program (example5.c) is the following:
ANSWER
Answered 2020-Nov-19 at 16:28I think you wrongly calculated some offset. I modified your script to automate some calculation. I am using Ubuntu 20.04 for testing. Btw, you should use %p instead of %llx for address.
Set breakpoint after printf(input); then inspected the stack, I decided to go for __libc_start_main to leak libc base:
QUESTION
I have a python2 script I want to run with the pwntools python module and I tried running it using:
python test.py
But then I get:
File "test.py", line 3, in from pwn import * ImportError: No module named pwn
But when I try it with python3, it gets past that error but it runs into other errors because it's a python2 script. Why does pwntools not work when I run it with python2 and can I get my script to run without porting the whole thing to python3?
...ANSWER
Answered 2020-Mar-31 at 20:55Hard to say for sure but it looks like you installed pwntools for python3 and not for python2. Packages are not shared between python versions. if you run python2 -m pip install --user pwntools and then try to run with python2 does it work?
QUESTION
I have the following protostar challenge
...ANSWER
Answered 2020-Mar-22 at 02:08After searching the instruction movaps segfault I came across this site that explains the issue.
The MOVAPS issue
If you're using Ubuntu 18.04 and segfaulting on a movaps instruction in buffered_vfprintf() or do_system() in the 64 bit challenges then ensure the stack is 16 byte aligned before returning to GLIBC functions such as printf() and system(). The version of GLIBC packaged with Ubuntu 18.04 uses movaps instructions to move data onto the stack in some functions. The 64 bit calling convention requires the stack to be 16 byte aligned before a call instruction but this is easily violated during ROP chain execution, causing all further calls from that function to be made with a misaligned stack. movaps triggers a general protection fault when operating on unaligned data, so try padding your ROP chain with an extra ret before returning into a function or return further into a function to skip a push instruction.
Simply adding a call to a ret gadget before the call to system aligned bytes, and allowed me to pop a shell.
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