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SwitHak /
Last active May 26, 2020
BlueTeam CheatSheet * CVE-2020-0601 * crypt32.dll | Last updated: 2020-01-21 1817 UTC

CVE-2020-0601 AKA ChainOfFools OR CurveBall


  • Microsoft disclosed a vulnerability in their monthly Patch Tuesday referenced under CVE-2020-0601.
  • The vulnerability was discovered by the U.S. National Security Agency, anounced today (2020-01-14) in their press conference, followed by a blog post and an official security advisory.
  • The flaw is located in the "CRYPT32.DLL" file under the C:\Windows\System32\ directory.

Vulnerability explanation

  • NSA description:
  • NSA has discovered a critical vulnerability (CVE-2020-0601) affecting Microsoft Windows® cryptographic functionality.
j00ru /
Created Jan 7, 2019
Insomni'hack Teaser 2017 "winworld" exploit by Mateusz "j00ru" Jurczyk
# Insomni'hack Teaser 2017 "winworld" task exploit
# Author: Mateusz "j00ru" Jurczyk
# Date: 21 January 2017
import os
import random
import string
import sys
import struct
mlafeldt /
Last active May 11, 2020
Example Postmortem from SRE book, pp. 487-491

Shakespeare Sonnet++ Postmortem (incident #465)




  • jennifer
  • martym
mlafeldt / Rakefile
Last active Apr 6, 2016
Rake task I use for starting a new article for Production Ready
View Rakefile
require "stringex"
desc "Create a new letter"
task :new_letter, :title do |t, args|
title = args[:title] || "New Letter"
num = File::basename(Dir['letters/*'].last)[0,3].to_i + 1
filename = "letters/" % [num, title.to_url]
date ="%Y-%m-%d")
puts "==> Creating new letter: #{filename}"
mlafeldt / Rakefile
Last active Apr 20, 2018
The Rake tasks I use to manage my blog
View Rakefile
require 'stringex'
POSTS_DIR = '_posts'
BUILD_DIR = '_site'
DEPLOY_DIR = '_deploy'
DEPLOY_BRANCH = 'master'
def git(*args)
sh 'git', *args
lantrix /
Created Feb 6, 2015
How to request SAML assertion from ADFS for Amazon Web Services using curl
curl --data @aws_saml_request.xml -H "Content-Type: application/soap+xml" --verbose -o "saml.xml"
lantrix / aws_saml_request.xml
Last active May 6, 2017
SOAP request for a SAML token for Amazon Web Services from an ADFS SOAP endpoint
View aws_saml_request.xml
<s:Envelope xmlns:s=""
<a:Action s:mustUnderstand="1"></a:Action>
<a:To s:mustUnderstand="1"></a:To>
<o:Security s:mustUnderstand="1" xmlns:o="">
<o:UsernameToken u:Id="uuid-6a13a244-dac6-42c1-84c5-cbb345b0c4c4-1">
rofl0r / init.c
Created Aug 6, 2013
minimal init daemon by rich felker, author of musl libc
View init.c
#define _XOPEN_SOURCE 700
#include <signal.h>
#include <unistd.h>
int main()
sigset_t set;
int status;
if (getpid() != 1) return 1;
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