[PDF] OWASP Cheat Sheets 27-Sept-2009 22 Unvalidated

Fortify Developer Workbook

15-Apr-2014 Including unvalidated data in Cookies can lead to HTTP Response header manipulation and enable cache-poisoning cross-site.

HTTP Response Splitting

HTTP Response Splitting. The Attack. • An HTTP message response includes two parts : – Message Headers – metadata that describes a request or response.

8.4.7 Web Application Attack Facts

16-Mar-2020 The extra data sent by the attacker could control and exploit the web ... and the data is included in an unvalidated HTTP response header ...

Root Input validation and representation Input validation and

HTTP Response Splitting. Writing unvalidated data into an HTTP header allows an attacker to specify the entirety of the HTTP response rendered by the 

Seven Pernicious Kingdoms: A Taxonomy of Software Security Errors

HTTP Response Splitting. Writing unvalidated data into an HTTP header allows an attacker to specify the entirety of the HTTP response rendered by the 

OWASP Cheat Sheets

27-Sept-2009 22 Unvalidated Redirects and Forwards Cheat Sheet ... The X-Frame-Options HTTP response header can be used to indicate whether or not a.

Unraveling some of the Mysteries around DOM-based XSS

http://projects.webappsec.org/w/page/13246920/Cross Site Scripting Don't send unvalidated data to these methods or properly escape the data before ...

AWS WAF AWS Firewall Manager

https://docs.aws.amazon.com/waf/latest/developerguide/waf-dg.pdf

Seven Pernicious Kingdoms: A Taxonomy of Software Security Errors

Writing unvalidated data into an HTTP header allows an attacker to specify the entirety of the HTTP response rendered by the browser.

Code Injection Vulnerabilities in Web Applications - Exemplified at

It is sent by the web server as part of an HTTP response message using the Set-Cookie header field. The cookie's domain property is implicitly controlled by 

What happens if you include unvalidated data in an HTTP response header?

This enables attacks such as cache-poisoning cross-site scripting cross-user defacement page hijacking cookie manipulation or open redirect. Including unvalidated data in an HTTP response header can enable cache-poisoning cross-site scripting, cross-user defacement, page hijacking, cookie manipulation or open redirect.

What is header manipulation?

1. Data enters a web application through an untrusted source, most frequently an HTTP request. 2. The data is included in an HTTP response header sent to a web user without being validated. As with many software security vulnerabilities, Header Manipulation is a means to an end, not an end in itself.

What is the problem with HTTP headers?

The problem is that if value comes from user input he can attack your http headers. If he is able to insert CR (carriage return, also given by %0d or r) into the value, then he can add another headers into your http request (because http headers are separated by CR). Source: Nice web article about those attacks.

What happens if a method sends unvalidated data to a web browser?

The method sends unvalidated data to a web browser on line xx, which can result in the browser executing malicious code. Any idea how can I fix this? This line is not enough to understand the problem. Can you give a bigger snippet of code? (the important part is to understand if any user input is affecting your responseString).