Fix OS command injection in WinRweAccess via os.system → subprocess.run(shell=False) - #114
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prakashb72
approved these changes
Sep 28, 2026
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| # Built-in imports | ||
| import os | ||
| import binascii | ||
| import subprocess |
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| def warm_reset(self): | ||
| os.system('{} /Nologo /Min /Command="O 0xCF9 0x06; RwExit"'.format(self.rw_executable)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=O 0xCF9 0x06; RwExit"], shell=False) |
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| def cold_reset(self): | ||
| os.system('{} /Nologo /Min /Command="O 0xCF9 0x0E; RwExit"'.format(self.rw_executable)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=O 0xCF9 0x0E; RwExit"], shell=False) |
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| def mem_block(self, address, size): | ||
| os.system('{} /Nologo /Min /Command="SAVE {} Memory 0x{:x} 0x{:x}; RwExit"'.format(self.rw_executable, self.temp_data_bin, address, size)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=SAVE {} Memory 0x{:x} 0x{:x}; RwExit".format(self.temp_data_bin, address, size)], shell=False) |
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| def mem_save(self, filename, address, size): | ||
| os.system('{} /Nologo /Min /Command="SAVE {} Memory 0x{:x} 0x{:x}; RwExit"'.format(self.rw_executable, filename, address, size)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=SAVE {} Memory 0x{:x} 0x{:x}; RwExit".format(filename, address, size)], shell=False) |
| else: | ||
| cmd = "W{} 0x{:x} 0x{:x}; W32 0x{:x} 0x{:x}".format(32, address, (value & 0xFFFFFFFF), (address + 4), (value >> 32)) | ||
| os.system('{} /Nologo /Min /Command="{}; RwExit"'.format(self.rw_executable, cmd)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command={}; RwExit".format(cmd)], shell=False) |
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| def load_data(self, filename, address): | ||
| os.system('{} /Nologo /Min /Command="LOAD {} Memory 0x{:x}; RwExit"'.format(self.rw_executable, filename, address)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=LOAD {} Memory 0x{:x}; RwExit".format(filename, address)], shell=False) |
| if size in (1, 2, 4): | ||
| cmd = "I{} 0x{:x}".format("" if size == 1 else 8*size, address) | ||
| os.system('{} /Nologo /Min /LogFile={} /Command="{}; RwExit"'.format(self.rw_executable, self.result_text, cmd)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/LogFile={}".format(self.result_text), "/Command={}; RwExit".format(cmd)], shell=False) |
| if size in (1, 2, 4): | ||
| cmd = "O{} 0x{:x} 0x{:x}".format("" if size == 1 else 8*size, address, value) | ||
| os.system('{} /Nologo /Min /Command="{}; RwExit"'.format(self.rw_executable, cmd)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command={}; RwExit".format(cmd)], shell=False) |
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| def trigger_smi(self, smi_value): | ||
| os.system('{} /Nologo /Min /Command="O 0x{:x} 0x{:x}; RwExit"'.format(self.rw_executable, 0xB2, smi_value)) | ||
| subprocess.run([self.rw_executable, "/Nologo", "/Min", "/Command=O 0x{:x} 0x{:x}; RwExit".format(0xB2, smi_value)], shell=False) |
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