> For the complete documentation index, see [llms.txt](https://docs.sec1.io/user-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sec1.io/user-docs/4-sast/2-java/missing-protection-against-session-fixation-attacks.md).

# Missing Protection against Session Fixation Attacks

## Overview

* **Rule ID**: `java_spring_missing_session_fixation`
* **Applicable Languages**: Java
* **Weakness ID**: CWE-384

## Description

A session fixation attack occurs when an attacker sets a user's session ID to a known value before login, potentially leading to unauthorized session hijacking. By default, the Spring framework mitigates this risk by creating a new session or changing the user's session ID upon login. Disabling this default behavior increases your application's vulnerability to session fixation attacks.

## Remediation Guidelines

* **Do not** disable Spring's default session fixation protection, as it removes a critical layer of security.

  ```java
  http.sessionManagement().sessionFixation().none() // not recommended
  ```
* **Instead, implement a session fixation protection strategy** by configuring Spring to create a new session or migrate to a new session ID upon login. This step is crucial for safeguarding user sessions against hijacking.

  ```java
  http.sessionManagement().sessionFixation().newSession() // or
  http.sessionManagement().sessionFixation().migrateSession()

  ```

## References

* [**OWASP Session Management Cheat Sheet**](https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html)
* [**Java Spring Session Fixation Configurer**](https://docs.spring.io/spring-security/site/docs/5.1.x/api/org/springframework/security/config/annotation/web/configurers/SessionManagementConfigurer.SessionFixationConfigurer.html)
* [**CWE-384: Session Fixation**](https://cwe.mitre.org/data/definitions/384.html)
* [**OWASP Top 10: A07:2021 - Identification and Authentication Failures**](https://owasp.org/Top10/A07_2021-Identification_and_Authentication_Failures/)

## Configuration

To omit this rule during a scan, and to provide you with continuous 24/7 code-level scanning, you can employ our [**SAST TOOL**](https://scopy.sec1.io/login)