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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: Trend Micro Maximum Security 2019 - Arbitrary Code Execution
# Date: 2020-1-16
# Exploit Author: hyp3rlinx
# Vendor Homepage: www.trendmicro.com
# Version: Platform Microsoft Windows, Premium Security 2019 (v15), Maximum Security 2019 (v15)
# Internet Security 2019 (v15), Antivirus + Security 2019 (v15)

[+] Credits: John Page (aka hyp3rlinx)		
[+] Website: hyp3rlinx.altervista.org
[+] Source:  http://hyp3rlinx.altervista.org/advisories/TREND-MICRO-SECURITY-CONSUMER-SECURITY-BYPASS-PROTECTED-SERVICE-TAMPERING.txt
[+] ISR: ApparitionSec          


[Vendor]
www.trendmicro.com


[Product]
Trend Micro Security 2019 (Consumer) Multiple Products


Trend Micro Security provides comprehensive protection for your devices.
This includes protection against ransomware, viruses, malware, spyware, and identity theft.


[Vulnerability Type]
Security Bypass Protected Service Tampering


[CVE Reference]
CVE-2019-19697


[Security Issue]
Trend Micro Maximum Security is vulnerable to arbitrary code execution as it allows for creation of registry key to target a process running as SYSTEM.
This can allow a malware to gain elevated privileges to take over and shutdown services that require SYSTEM privileges like Trend Micros "Asmp"
service "coreServiceShell.exe" which does not allow Administrators to tamper with them.

This could allow an attacker or malware to gain elevated privileges and tamper with protected services by disabling or otherwise preventing them to start.
Note administrator privileges are required to exploit this vulnerability.


[CVSS 3.0 Scores: 3.9]


[Affected versions]
Platform Microsoft Windows
Premium Security 2019 (v15)
Maximum Security 2019 (v15)
Internet Security 2019 (v15)
Antivirus + Security 2019 (v15)


[References]
https://esupport.trendmicro.com/en-us/home/pages/technical-support/1124090.aspx


[Exploit/POC]
1) Create a entry for the following registry key targeting "PtWatchdog.exe" and set the debugger string value to an arbitrary executable to gain SYSTEM privs.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PtWatchdog.exe

2) Create a string named "debugger" under the reg key and give it the value of the executable you wish to run as SYSTEM.

3) Restart the machine or wait until service is restart then you get SYSTEM and can now disable Trend Micro endpoint security coreServiceShell.exe service


[Network Access]
Local


[Severity]
Low


[Disclosure Timeline]
Vendor Notification: October 8, 2019
Vendor confirms issue: October 28, 2019
Vendor release date: January 14, 2020
January 16, 2020 : Public Disclosure


[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).

hyp3rlinx