Grazfather

FROM ubuntu:22.04

ENV DEBIAN_FRONTEND=noninteractive
RUN apt update
# install dependencies for python3.8
RUN apt install -y build-essential zlib1g-dev libncurses5-dev libgdbm-dev \
    libnss3-dev libssl-dev libreadline-dev libffi-dev wget curl git \
    file locales
#attempt to fix libncursesw.so.5
RUN apt install libncurses5 -y

Grazfather

#!/usr/bin/env bb

(ns context-times
  (:require [clojure.data.csv :as csv]
            [clojure.java.io :as io]
            [clojure.java.shell :refer [sh]]
            [clojure.string :as s]
            [clojure.tools.cli :refer [parse-opts]]))

;; CLI

Grazfather

#!/bin/bash
#
# Install/update Capstone/Keystone/Unicorn from GitHub with Python/Python3 bindings
# First time, run:
# $ sudo apt-get install git cmake gcc g++ pkg-config libglib2.0-dev
#

LOGFILE=/tmp/update-trinity.log
NB_CPU="$(grep -c processor /proc/cpuinfo)"

Grazfather

# Run from within gdb (e.g. `pi <enter>` and paste)
need = [0x27, 0xb3, 0x73, 0x9d, 0xf5, 0x11, 0xe7, 0xb1, 0xb3, 0xbe, 0x99, 0xb3, 0xf9, 0xf9, 0xf4, 0x30, 0x1b, 0x71, 0x99, 0x73, 0x23, 0x65, 0x99, 0xb1, 0x65, 0x11, 0x11, 0xbe, 0x23, 0x99, 0x27, 0xf9, 0x23, 0x99, 0x05, 0x65, 0xce]

map = {}
for i in range(0xfe):
    r = gdb.execute("call get_tbl_entry({})".format(i), False, True)
    v = int(r.rstrip().split()[-1], 16)
    map[v] = i

s = ""

Grazfather

# Taken from the binary
gh = "A)\xd9e\xa1\xf1\xe1\xc9\x19\t\x93\x13\xa1\t\xb9I\xb9\x89\xdda1i\xa1\xf1q!\x9d\xd5=\x15\xd5"
mh = ""

def mirror_bits(c):
    return (
            (c & 1) << 7 |
            (c & 2) << 5 |
            (c & 4) << 3 |
            (c & 8) << 1 |

Grazfather

from pwn import *
from collections import defaultdict


def add_row(graph, y, row):

    for x, col in enumerate(row):
        true_x = x/2
        if col == " ": # Can do down or left
            if not x & 1:  # This is the left wall part

Grazfather

# From BsidesSF CTF 2017

import itertools
import requests
import sys
from binascii import hexlify, unhexlify

uh = unhexlify
h = hexlify

Grazfather

import sys

from pwn import *


def exploit():
    r.recvuntil("start: ")
    addr = r.recv(10)
    addr = int(addr, 16)
    print hex(addr)

Grazfather

Original report:

************* Module gef
W:2774, 0: TODO: add more customizable items (fixme)
W:100, 0: Anomalous backslash in string: '\-'. String constant might be missing an r prefix. (anomalous-backslash-in-string)
C:173, 0: Exactly one space required around comparison
    if len(sys.argv)==2 and sys.argv[1]=="--update":
                    ^^ (bad-whitespace)
C:173, 0: Exactly one space required around comparison

Grazfather

#!/usr/bin/env python

import sys

from pwn import *

port = 8080

strtol_addr = 0x6030B0