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Improved AMI UCP > NAL unpacking

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Fix potential illegal path traversals
This commit is contained in:
platomav 2022-04-15 18:17:58 +03:00
parent 672b4b2321
commit 40686d5edf
13 changed files with 102 additions and 43 deletions
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8
AMI_PFAT_Extract.py
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@ -7,7 +7,7 @@ AMI BIOS Guard Extractor
Copyright (C) 2018-2022 Plato Mavropoulos
"""
title = 'AMI BIOS Guard Extractor v4.0_a5'
title = 'AMI BIOS Guard Extractor v4.0_a6'
import os
import re
@ -20,7 +20,7 @@ sys.dont_write_bytecode = True
from common.externals import get_bgs_tool
from common.num_ops import get_ordinal
from common.path_ops import safe_name
from common.path_ops import get_safe_name
from common.patterns import PAT_AMI_PFAT
from common.struct_ops import get_struct, char, uint8_t, uint16_t, uint32_t
from common.system import script_init, argparse_init, printer
@ -139,7 +139,7 @@ def get_ami_pfat(input_buffer):
return match, buffer
def get_file_name(index, title):
return safe_name('%0.2d -- %s' % (index, title))
return get_safe_name('%0.2d -- %s' % (index, title))
def parse_bg_script(script_data, padding):
is_opcode_div = len(script_data) % 8 == 0
@ -224,7 +224,7 @@ def parse_pfat_file(buffer, output_path, padding):
extract_name = os.path.basename(output_path)
extract_path = os.path.join(output_path + '_extracted', '')
extract_path = os.path.join(output_path + '_extracted')
if os.path.isdir(extract_path): shutil.rmtree(extract_path)