Session Management / Cookies Attributes

Web and API

Description

Cookies Attributes is a vulnerability in Session Management, which is a subcategory of Web and API Security according to the Common Weakness Enumeration (CWE) directory. This vulnerability occurs when the server fails to properly set the attributes of the cookie. This can be due to a lack of proper configuration in the server, or if an application fails to properly set cookie attributes. This can lead to session hijacking and other session related attacks. OWASP Testing Guide provides more information on this vulnerability and how to test for it.

Risk

The risk of this vulnerability is high as it can lead to session hijacking and other session related attacks. An attacker can gain access to the system by exploiting this vulnerability, gaining control of user accounts and potentially stealing data.

Solution

The first step to fixing this vulnerability is to ensure that the server is properly configured to set the attributes of the cookie. This can be done by setting the "HttpOnly" and "Secure" flags in the cookie. The "HttpOnly" flag ensures that the cookie can only be accessed by the server, and not by any client-side scripts. The "Secure" flag ensures that the cookie is only sent over an encrypted connection. Additionally, applications should be tested to ensure that the cookie attributes are properly set.

Example

Below is an example of code setting the "HttpOnly" and "Secure" cookie flags.

Set-Cookie: myCookie=value; HttpOnly; Secure

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