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scripts: add PE .reloc section check to security-check.py

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This commit is contained in:
fanquake
2020-04-13 20:32:19 +08:00
parent 47b94a337e
commit 3e38023af7
2 changed files with 22 additions and 8 deletions
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14
contrib/devtools/security-check.py
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@ -158,6 +158,17 @@ def check_PE_HIGH_ENTROPY_VA(executable):
reqbits = 0
return (bits & reqbits) == reqbits
def check_PE_RELOC_SECTION(executable) -> bool:
'''Check for a reloc section. This is required for functional ASLR.'''
p = subprocess.Popen([OBJDUMP_CMD, '-h', executable], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, universal_newlines=True)
(stdout, stderr) = p.communicate()
if p.returncode:
raise IOError('Error opening file')
for line in stdout.splitlines():
if '.reloc' in line:
return True
return False
def check_PE_NX(executable):
'''NX: DllCharacteristics bit 0x100 signifies nxcompat (DEP)'''
(arch,bits) = get_PE_dll_characteristics(executable)
@ -247,7 +258,8 @@ CHECKS = {
'PE': [
('DYNAMIC_BASE', check_PE_DYNAMIC_BASE),
('HIGH_ENTROPY_VA', check_PE_HIGH_ENTROPY_VA),
('NX', check_PE_NX)
('NX', check_PE_NX),
('RELOC_SECTION', check_PE_RELOC_SECTION)
],
'MACHO': [
('PIE', check_MACHO_PIE),