mRemoteNG 1.76.20 Privilege Escalation

`mRemoteNG mRemoteNG v1.76.20 Privilege Escalation  
  
  
Detailed Information  
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Product Name: mRemoteNG  
Vendor Home Page: https://mremoteng.org  
Vulnerable Version: mRemoteNG v1.76.20  
Fixed Version: mRemoteNG v1.76.20.24615  
Vulnerability Type: Improper Access Control (CWE-284)  
CVE Reference: CVE-2020-24307  
Author of Advisory: Thurein Soe  
  
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Product Description:  
  
mRemoteNG is an open-source multi-protocol, remote connections manager for  
Windows that allows managing multiple diverse connections with remote  
systems.  
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Vulnerability description:  
  
Windows service permissions is a type of local privilege escalation in the  
windows operating system. Weak service permissions run with system user  
permission that allows a standard user to elevate to administrator  
privilege on the compromised system upon successfully modifying the  
service. mRemoteNG.exe was giving modify permission to any authenticated  
users in the windows operating system that allows standard users to modify  
the service resulting in leading Privilege Escalation.  
  
C:\Users\NyaMeeEain>icacls "C:\Program Files (x86)\mRemoteNG\mRemoteNG.exe"  
C:\Program Files (x86)\mRemoteNG\mRemoteNG.exe APPLICATION PACKAGE  
AUTHORITY\ALL APPLICATION PACKAGES:(M)  
BUILTIN\Users:(M)  
APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(I)(M)  
NT AUTHORITY\SYSTEM:(I)(F)  
BUILTIN\Administrators:(I)(F)  
BUILTIN\Users:(I)(RX)  
APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(I)(RX)  
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References:  
https://www.immuniweb.com/vulnerability/improper-access-control.html  
https://www.cvedetails.com/cwe-details/284/Access-Control-Authorization-Issues.html  
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Credits:  
Thurein Soe  
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`