Fixed HTTP Session Cookies

This script is Copyright (C) 2010-2015 Tenable Network Security, Inc.

Synopsis :

The remote web application may be vulnerable to a session fixation

Description :

The remote web application uses cookies to track authenticated users.
If the session cookie is already present before authentication, it
remains unchanged after a successful login. That is, only server-side
variables are updated.

Session cookies are expected to be unpredictable in a secure web
application. If HTTP cookies can be manipulated (by injecting client-
side JavaScript for example), then the attacker does not have to break
the pseudo-random generator, and the web application is vulnerable to
a 'session fixation' attack.

See also :

Solution :

Fix the application so that the session cookie is re-generated after
successful authentication.

Risk factor :

Medium / CVSS Base Score : 5.1

Family: Web Servers

Nessus Plugin ID: 46201 (fixed_session_cookies.nasl)

Bugtraq ID: