mpapierski · October 13, 2017 22:21
diff --git a/gen.py b/gen.py
 script = '''#!/bin/sh
 tail -c{} $0|gunzip
 exit
 '''

 with open('pwning2017.sh', 'wb') as fout:
    with open('payload', 'rb') as fin:
        payload = fin.read()
        fout.write(script.format(len(payload)))
        fout.write(payload)

diff --git a/pwning2017.sh b/pwning2017.sh
diff --git a/pwning2017.txt b/pwning2017.txt
          ______ _    _ _   _ _
          | ___ \ |  | | \ | (_)    SECURITY
          | |_/ / |  | |  \| |_ _ __   __ _
          |  __/| |/\| | . ` | | '_ \ / _` |
          | |   \  /\  / |\  | | | | | (_| |
          \_|    \/  \/\_| \_/_|_| |_|\__, |
                                       __/ |
          W a r s z a w a   2 0 1 7   |___/
	script = '''#!/bin/sh
	tail -c{} $0\|gunzip
	exit
	'''

	with open('pwning2017.sh', 'wb') as fout:
	with open('payload', 'rb') as fin:
	payload = fin.read()
	fout.write(script.format(len(payload)))
	fout.write(payload)