1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
#!/usr/bin/env python3
# Copyright (c) 2015-2017 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
'''
Test script for security-check.py
'''
import subprocess
import unittest
def write_testcode(filename):
with open(filename, 'w') as f:
f.write('''
#include <stdio.h>
int main()
{
printf("the quick brown fox jumps over the lazy god\\n");
return 0;
}
''')
def call_security_check(cc, source, executable, options):
subprocess.check_call([cc,source,'-o',executable] + options)
p = subprocess.Popen(['./security-check.py',executable], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, universal_newlines=True)
(stdout, stderr) = p.communicate()
return (p.returncode, stdout.rstrip())
class TestSecurityChecks(unittest.TestCase):
def test_ELF(self):
source = 'test1.c'
executable = 'test1'
cc = 'gcc'
write_testcode(source)
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-zexecstack','-fno-stack-protector','-Wl,-znorelro']),
(1, executable+': failed PIE NX RELRO Canary'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-znoexecstack','-fno-stack-protector','-Wl,-znorelro']),
(1, executable+': failed PIE RELRO Canary'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-znoexecstack','-fstack-protector-all','-Wl,-znorelro']),
(1, executable+': failed PIE RELRO'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-znoexecstack','-fstack-protector-all','-Wl,-znorelro','-pie','-fPIE']),
(1, executable+': failed RELRO'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,-znoexecstack','-fstack-protector-all','-Wl,-zrelro','-Wl,-z,now','-pie','-fPIE']),
(0, ''))
def test_32bit_PE(self):
source = 'test1.c'
executable = 'test1.exe'
cc = 'i686-w64-mingw32-gcc'
write_testcode(source)
self.assertEqual(call_security_check(cc, source, executable, []),
(1, executable+': failed DYNAMIC_BASE NX'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,--nxcompat']),
(1, executable+': failed DYNAMIC_BASE'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,--nxcompat','-Wl,--dynamicbase']),
(0, ''))
def test_64bit_PE(self):
source = 'test1.c'
executable = 'test1.exe'
cc = 'x86_64-w64-mingw32-gcc'
write_testcode(source)
self.assertEqual(call_security_check(cc, source, executable, []), (1, executable+': failed DYNAMIC_BASE NX\n'+executable+': warning HIGH_ENTROPY_VA'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,--nxcompat']), (1, executable+': failed DYNAMIC_BASE\n'+executable+': warning HIGH_ENTROPY_VA'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,--nxcompat','-Wl,--dynamicbase']), (0, executable+': warning HIGH_ENTROPY_VA'))
self.assertEqual(call_security_check(cc, source, executable, ['-Wl,--nxcompat','-Wl,--dynamicbase','-Wl,--high-entropy-va']), (0, ''))
if __name__ == '__main__':
unittest.main()
|
