CVE-2022-46170: CodeIgniter Multiple Session Cookie Vulnerability
Summary
CVE-2022-46170: CodeIgniter is a PHP full-stack web framework. Affects codeigniter versions >= 4.0.0, < 4.2.11. Fixed in 4.2.11. How to fix ↓
Also tracked for
- codeigniter4/framework · Packagist
The same CVE-2022-46170 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
CodeIgniter is a PHP full-stack web framework that provides a robust set of tools for building web applications. It is widely used for its simplicity, performance, and security features. CodeIgniter allows developers to create and manage session cookies, which are used to store user-specific data and maintain user sessions. These cookies are essential for authentication and authorization purposes. However, when an application uses multiple session cookies and a session handler is set to DatabaseHandler, MemcachedHandler, or RedisHandler, a vulnerability arises. This vulnerability allows an attacker who gains access to one session cookie to potentially access pages that require another session cookie. This issue has been addressed in CodeIgniter version 4.2.11 and later.
Vulnerability Detail
The vulnerability in CodeIgniter arises when an application uses multiple session cookies and a session handler is set to DatabaseHandler, MemcachedHandler, or RedisHandler. In such cases, if an attacker manages to obtain one session cookie, they may be able to access pages that require another session cookie. This can lead to unauthorized access to sensitive information or actions that are restricted to certain users. The impact of this vulnerability depends on the nature of the application and the privileges associated with the different session cookies. It is crucial to upgrade to CodeIgniter version 4.2.11 or later to mitigate this vulnerability.
How To Fix
Minimum fixed version
4.2.11
This is the first release that contains the fix.
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Workaround
As a temporary workaround, it is advised to use only one session cookie instead of multiple cookies. By using a single session cookie, the risk of an attacker gaining access to restricted pages is mitigated. However, this workaround may not be feasible for applications that require separate session cookies for different user roles or functionalities. It is recommended to implement the permanent fix by upgrading to CodeIgniter version 4.2.11 or later.
Conclusion
The vulnerability in CodeIgniter that allows an attacker to access pages requiring a different session cookie can be mitigated by upgrading to version 4.2.11 or later. It is crucial to apply this fix to prevent unauthorized access to sensitive information or actions. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
CodeIgniter is a PHP full-stack web framework known for its simplicity, performance, and security features. It provides developers with a set of tools for building web applications.
A session cookie is a small piece of data stored on the client-side that is used to maintain user sessions. It is essential for authentication and authorization purposes in web applications.
The vulnerability occurs when an application uses multiple session cookies and a session handler is set to DatabaseHandler, MemcachedHandler, or RedisHandler. This allows an attacker who gains access to one session cookie to potentially access pages that require another session cookie.
The potential consequences of this vulnerability include unauthorized access to sensitive information or actions that are restricted to certain users. The impact depends on the nature of the application and the privileges associated with the different session cookies.
To fix this vulnerability, it is recommended to upgrade to CodeIgniter version 4.2.11 or later. This version includes a patch that addresses the issue and ensures proper isolation of session cookies.
References
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