Salut à tous,
C'est au hasard du web que je suis tombé sur un site curieux qui dresse la liste des vulnérabilités et exploitations de failles de bon nombre de cms...
J'ai donc voulu voir si Kws y était listé et hop surprise voici ce qui apparait :
Code PHP :
Pour copier le contenu exact du code,
Veuillez citer le message
<?php
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Document Title:
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KWSPHP CMS v1.6.995 - Persistent Cross Site Scripting Web Vulnerability
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Release Date:
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2016-07-01
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Vulnerability Laboratory ID (VL-ID):
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1867
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Common Vulnerability Scoring System:
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3.5
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Product & Service Introduction:
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KwsPHP fully configurable Site. Our links and official banners. KwsPHP is a CMS (Content Management System or content management system).
Discover its major assets as of the installation: an installation of ease via an ergonomic interface, simple and intuitive. You are guided
step by step through the installation to find yourself before a true virgin website, ready to be filled according to your wishes. To change
your site and add items Space member KwsPHP offers a full range of functions and topics.
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(Copy of the Vendor Homepage: http://www.kwsphp.org/ )
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Abstract Advisory Information:
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An independent vulnerability laboratory researcher discovered an application-side vulnerability in the official KWSPHP v1.6.995 content management system.
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Vulnerability Disclosure Timeline:
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2016-07-01: Public Disclosure (Vulnerability Laboratory)
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Discovery Status:
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Published
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Affected Product(s):
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KwsPHP Ltd
Product: KwsPHP - Content Management System (Web-Application) 1.6.995
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Exploitation Technique:
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Remote
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Severity Level:
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Medium
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Technical Details & Description:
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A persistent cross site scripting web vulnerability has been discoverd in the official KWSPHP v1.6.995 content management system.
The security issue allows remote attackers to inject own malicious script codes on the application-side of the affected service module.
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The vulnerability is located in the `sql_contact_pseudo` parameter of the `index.php` file within the contact module. Remote attackers and
low privileged web-application user accounts are able to inject own malicious script code context as `contact pseudonym` value of the
index.php file POST method request. The injection point is the vulnerable contact formular and the execution occurs in the same formular
context after the submit POST method request is perfomed. Not only the form itself is wrong encoded, the email that is get send to the
contact will be encoded as html which results in a second point of execution. The main issue occurs in the contact formular itself.
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The security risk of the persistent validation vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 3.5.
Exploitation of the persistent input validation web vulnerability requires no privileged web-application user account and low or medium user interaction.
Successful exploitation of the vulnerability results in session hijacking, persistent phishing, persistent external redirects to malicious source and
persistent manipulation of affected or connected application modules.
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Request Method(s):
[+] POST
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Vulnerable Module(s):
[+] Contact Formular
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Vulnerable File(s):
[+] index.php
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Vulnerable Parameter(s):
[+] sql_contact_pseudo
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Affected Module(s):
[+] Contact Formular
[+] Email Notify
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Proof of Concept (PoC):
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The persistent input validation web vulnerability can be exploited by remote attackers without privileged user account and with low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.
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--- PoC Session Logs [POST] ---
Host: http://localhost:8080/
User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:47.0) Gecko/20100101 Firefox/47.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate, br
Referer: http://localost/index.php?mod=contact
Cookie: PHPSESSID=24dbc6ca1f342ab46690fe39b20ba4b2
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 241 test
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[+] Method POST [+]
sql_contact_pseudo=[SCRIPT CODE INJECTION!]&sql_contact_email=test%40live.fr&sql_contact_objet=d&
texte=%3Cp%3Ec%3C%2Fp%3E&contact_copie=non&code_secu=&xss_retour=.%2Findex.php%3Fmod%3Dcontact&contact_envoyer=+Envoyer+
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Solution - Fix & Patch:
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The vulnerability can be patched by a secure parse and encode of the vulnerable `sql_contact_pseudo` parameter of the index.php file.
Restrict the parameter and input field inputs by disallowing the usage of special chars or script code tags.
Encode the vulnerable output location with a secure mechanism and filter the entries. Implement a secure exception to prevent further persistent injection attacks.
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Security Risk:
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The security risk of the persistent input validation web vulnerability in the contact module is estimated as medium. (CVSS 3.5)
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Là ou je suis étonné c'est que l'on parle d'une version v1.6.995 !
Or si je ne me trompe pas, ben elle n'existe pas...
Quelqu'un pourrait t'il me donner son avis ?
La faille existe t'elle ?
Ou bien tout ceci n'est que du vent... ;)