PHP Classes

Secure Session: Prevent session hijacking or session fixation

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  Author Author  
Picture of Vagharshak Tozalakyan
Name: Vagharshak Tozalakyan <contact>
Classes: 22 packages by
Country: United States United States
Age: 43
All time rank: 61 in United States United States
Week rank: 587 Down59 in United States United States Down
Innovation award
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This class can be used to prevent security attacks known as session hijacking and session fixation.

When a session is initialized the class computes a fingerprint string that takes in account the browser user agent string, the user agent IP address or part of it and a secret word. If the fingerprint value changes, it is very likely that the session was hijacked and it should no longer be accepted.

To prevent session fixation attacks the calls the PHP session_regenerate_id() function so the session identifier changes everytime the session is checked.

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Name: Secure Session
Base name: secure_session
Description: Prevent session hijacking or session fixation
Version: 1.0.0
PHP version: -
License: GNU General Public License (GPL)
All time users: 13505 users
All time rank: 79
Week users: 0 users
Week rank: 137 Equal
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Group folder image User Management User records, authentication and session handling View top rated classes
Group folder image Security Security protection and attack detection View top rated classes

  Innovation Award  
PHP Programming Innovation award nominee
January 2006
Number 2

Prize: One book of choice by O'Reilly
Sessions have become one of possible features that can be exploited to perform security attacks to PHP sites.

Sessions are not insecure by themselves, but if they are not used with a certain care, they may be eventually abused by malicious users.

Session hijacking abuses can happen when somebody with privileged network access can sniff traffic that goes to potential victim site. Session fixation abuses can happen when a site uses the same session identifier for the same user before and after he authenticates to log in.

This class provides a solution to prevent these kinds of session abuses to prevent that PHP sites that use sessions become compromised.

Manuel Lemos

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All time: Good (91%) Good (88%) - Good (85%) - - Sufficient (63%) 1046
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  Pages that reference this package  
PHP Session Management
There is no such thing as a 100% secure anything in this world of hackers/counter hackers...

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  Files folder image Files  
File Role Description
Files folder imagesample (2 files)
Plain text file securesession.class.php Class Source

  Files folder image Files  /  sample  
File Role Description
  Accessible without login Plain text file index.php Example Sample
  Accessible without login Plain text file login.php Example Sample

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