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354 lines (321 loc) · 15.3 KB
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import os
import angr
import ailment
import io
import re
import logging
import util
import pyvex
from angr import Project
from angr.analyses.reaching_definitions.dep_graph import DepGraph
from angr.knowledge_plugins.key_definitions.constants import OP_BEFORE
import subprocess
import copy
import graph
import subprocess
global func_added
logging.getLogger('angr').setLevel('CRITICAL')
func_added=[]
syscallmap = {}
syslist=[]
weakalias1 = {}
weakalias2 = {}
with open("./input/glibc.weak") as f:
for line1 in f:
line1=line1.strip()
(key, val) = line1.split(",")
if weakalias1.__contains__(key):
tmp=weakalias1[key]
if val not in tmp:
weakalias1[key].append(val)
else:
weakalias1.setdefault(key, [])
weakalias1[key].append(val)
if weakalias2.__contains__(val):
tmp=weakalias2[val]
if key not in tmp:
weakalias2[val].append(key)
else:
weakalias2.setdefault(val, [])
weakalias2[val].append(key)
class Syscallo:
def __init__(self, name, address):
self.name = name
self.add = address
class argument_obj:
def __init__(self, sysname, arguments):
self.sysname = sysname
self.args = {}
args=arguments.split(",")
for reg in args:
reg_splitted=reg.split(":")
if len(reg_splitted) > 1:
if "Undefined" not in reg_splitted[1] and "SP" not in reg_splitted[1]:
self.args[reg_splitted[0]]=reg_splitted[1]
else:
self.args[reg_splitted[0]]="Undefined"
def extract(name,all_funcs,containerName,libcVersion,imported_funcs):
with open('./input/AllSyscall') as f:
syscallmap= f.read()
syslistFile=open("./input/MiniSyscall","r")
for line in syslistFile:
line=line.strip()
syslist.append(line)
syslistFile.close()
checking=create_graph(name,libcVersion,containerName,imported_funcs)
if checking==1:
func_list=checking_mapping(name,all_funcs)
arguments_value=Extract_args(func_list,libcVersion)
print_args(arguments_value,containerName)
else:
return
def create_graph(name,libcVersion,containerName,imported_funcs):
whiteSys=open("./result/result_"+containerName+"/syscallslist","a")
rootLogger = logging.getLogger("coverage")
rootLogger.setLevel(logging.CRITICAL)
uniq_calls = imported_funcs
glibcGraph = graph.Graph(rootLogger)
glibcGraph.createGraphFromInput("./input/glibc."+libcVersion+".callgraph", ":")
glibcSyscallList=[]
i=0
while i < 400:
glibcSyscallList.append("syscall(" + str(i) + ")")
glibcSyscallList.append("syscall ( " + str(i) + " )")
glibcSyscallList.append("syscall( " + str(i) + " )")
i += 1
for func in uniq_calls:
leaves = glibcGraph.getLeavesFromStartNode(func , glibcSyscallList, list(),name)
if len(uniq_calls)>0:
lines=[]
file=open("./g_ouput/mapping_"+name,"r")
output1=open("./g_ouput/final_mapping"+name,"a+")
for line in file:
line=line.strip()
for syscall in syslist:
if syscall in line:
tmp=line.split("->")
whiteSys.write(str(tmp[-1])+"\n")
if line not in lines:
output1.write(line+"\n")
lines.append(line)
file.close()
output1.close()
return 1
else:
return 0
whiteSys.close()
def Extract_args(func_list,libcVersion):
arguments_value={}
with open("./input/syscalls."+libcVersion+".txt") as f:
for line1 in f:
line1=line1.strip()
#print(line1)
(key, val) = line1.split(";")
if key in func_list:
if arguments_value.__contains__(key):
splitted_args=val.split("&")
new_args=argument_obj(splitted_args[0],splitted_args[1])
if new_args not in arguments_value[key]:
arguments_value[key].append(new_args)
else:
arguments_value.setdefault(key, [])
splitted_args=val.split("&")
new_args=argument_obj(splitted_args[0],splitted_args[1])
arguments_value[key].append(new_args)
f.close()
return arguments_value
def print_args(arguments_value,containerName):
uniq_args={}
for key in arguments_value:
sys_list=arguments_value[key]
for sys_call in sys_list:
if uniq_args.__contains__(sys_call.sysname):
args_list=uniq_args[sys_call.sysname]
if sys_call.args.__contains__('edi'):
if args_list.__contains__('edi'):
if sys_call.args['edi'] not in args_list['edi']:
args_list['edi'].append(sys_call.args['edi'])
else:
tmp=[]
tmp.append(sys_call.args['edi'])
args_list['edi']= tmp
if sys_call.args.__contains__('esi'):
if args_list.__contains__('esi'):
if sys_call.args['esi'] not in args_list['esi']:
args_list['esi'].append(sys_call.args['esi'])
else:
tmp=[]
tmp.append(sys_call.args['esi'])
args_list['esi']= tmp
if sys_call.args.__contains__('edx'):
if args_list.__contains__('edx'):
if sys_call.args['edx'] not in args_list['edx']:
args_list['edx'].append(sys_call.args['edx'])
else:
tmp=[]
tmp.append(sys_call.args['edx'])
args_list['edx']= tmp
if sys_call.args.__contains__('ecx'):
if args_list.__contains__('ecx'):
if sys_call.args['ecx'] not in args_list['ecx']:
args_list['ecx'].append(sys_call.args['ecx'])
else:
tmp=[]
tmp.append(sys_call.args['ecx'])
args_list['ecx']= tmp
if sys_call.args.__contains__('r8d'):
if args_list.__contains__('r8d'):
if sys_call.args['r8d'] not in args_list['r8d']:
args_list['r8d'].append(sys_call.args['r8d'])
else:
tmp=[]
tmp.append(sys_call.args['r8d'])
args_list['r8d']= tmp
if sys_call.args.__contains__('r9d'):
if args_list.__contains__('r9d'):
if sys_call.args['r9d'] not in args_list['r9d']:
args_list['r9d'].append(sys_call.args['r9d'])
else:
tmp=[]
tmp.append(sys_call.args['r9d'])
args_list['r9d']= tmp
uniq_args[sys_call.sysname]=args_list
else:
args_list={}
uniq_args.setdefault(sys_call.sysname, {})
if sys_call.args.__contains__('edi'):
tmp=[]
tmp.append(sys_call.args['edi'])
args_list['edi']= tmp
if sys_call.args.__contains__('esi'):
tmp=[]
tmp.append(sys_call.args['esi'])
args_list['esi']= tmp
if sys_call.args.__contains__('edx'):
tmp=[]
tmp.append(sys_call.args['edx'])
args_list['edx']= tmp #for obj in obj.args
if sys_call.args.__contains__('ecx'):
tmp=[]
tmp.append(sys_call.args['ecx'])
args_list['ecx']= tmp
if sys_call.args.__contains__('r8d'):
tmp=[]
tmp.append(sys_call.args['r8d'])
args_list['r8d']= tmp
if sys_call.args.__contains__('r9d'):
tmp=[]
tmp.append(sys_call.args['r9d'])
args_list['r9d']= tmp
uniq_args[sys_call.sysname]=args_list
for key in uniq_args:
value=uniq_args[key]
key=key.replace("__", "")
key=key.replace("64", "")
sys_file=open("./output/output_"+containerName+"/"+key,"a+")
for reg in value:
tmp=str(value[reg])
sys_file.write(reg+":")
tmp=tmp.replace("[","")
tmp=tmp.replace("]","")
sys_file.write(tmp)
sys_file.write(";")
sys_file.write("\n")
sys_file.close()
def checking_mapping(name,all_funcs):
mapping = open("./g_ouput/final_mapping"+name,"r")
for line in mapping:
line=line.rstrip()
splittedItems = line.split("->")
lent=len(splittedItems)
syscallname=splittedItems[lent-1]
if syscallname in syslist:
for i in reversed(range(lent)):
if splittedItems[i] not in syslist:
if "None" not in splittedItems[i]:
if splittedItems[i]=="malloc":
splittedItems[i]="sysmalloc"
if splittedItems[i] in all_funcs:
if splittedItems[i] not in func_added:
func_added.append(splittedItems[i])
break
else:
break
else:
if splittedItems[i]+"64" in all_funcs:
if splittedItems[i]+"64" not in func_added:
func_added.append(splittedItems[i]+"64")
break
else:
break
else:
if "__"+splittedItems[i] in all_funcs:
if "__"+splittedItems[i] not in func_added:
func_added.append("__"+splittedItems[i])
break
else:
break
else:
if "__"+splittedItems[i]+"64" in all_funcs:
if "__"+splittedItems[i]+"64" not in func_added:
func_added.append("__"+splittedItems[i]+"64")
break
else:
break
else:
tmp=splittedItems[i].replace("__", "")
if tmp in all_funcs:
if tmp not in func_added:
func_added.append(tmp)
break
else:
break
else:
tmp=splittedItems[i].replace("64", "")
if tmp in all_funcs:
if tmp not in func_added:
func_added.append(tmp)
break
else:
break
else:
tmp=splittedItems[i].replace("64", "")
tmp=splittedItems[i].replace("__", "")
if tmp in all_funcs:
if tmp not in func_added:
func_added.append(tmp)
break
else:
break
else:
if weakalias1.__contains__(splittedItems[i]):
check=False
tmp_val=weakalias1[splittedItems[i]]
for func in tmp_val:
if func in all_funcs and func not in syslist:
if func not in func_added:
func_added.append(func)
check=True
break
else:
check=True
break
if check:
break
else:
if weakalias2.__contains__(splittedItems[i]):
check=False
tmp_val=weakalias2[splittedItems[i]]
for func in tmp_val:
if func in all_funcs and func not in syslist:
if func not in func_added:
func_added.append(func)
check=True
break
else:
check=True
break
if check:
break
mapping.close()
return func_added