Document Title: =============== Filter Evasion and Bypass Methods - Pentest Magazine References: =========== Download: https://www.vulnerability-lab.com/resources/documents/798.pdf Magazine: https://pentestmag.com/pentest-regular-0113/ Release Date: ============= 2013-05-28 Vulnerability Laboratory ID (VL-ID): ==================================== 798 Discovery Status: ================= Published Exploitation Technique: ======================= Report Severity Level: =============== High Technical Details & Description: ================================ Input Filter – Restrictions, Service Validation Evasion & Bypass Methods (Part#1) by Benjamin Kunz Mejri Web applications are everywhere available on the Internet. There almost has been a web application for each task. Many of web-developers are using different techniques to secure their applications. For example, some are using filters, encoding, exception handling or other types of ways to validate user input data. In the same ways attackers use different creative and innovative methods to bypass these validations and restrictions. Credits & Authors: ================== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@vulnerability-lab.com) Disclaimer & Information: ========================= The information provided in this document is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases or trade with fraud/stolen material. Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.vulnerability-lab.com/register Contact: admin@vulnerability-lab.com - support@vulnerability-lab.com - research@vulnerability-lab.com Section: video.vulnerability-lab.com - forum.vulnerability-lab.com - news.vulnerability-lab.com Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed), modify, use or edit our material contact (admin@vulnerability-lab.com or support@vulnerability-lab.com) to get a permission. Copyright © 2013 | Vulnerability Laboratory