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CodeIgniter4 Potential Session Handlers Vulnerability

High severity GitHub Reviewed Published Dec 22, 2022 in codeigniter4/CodeIgniter4 • Updated Jan 29, 2023

Package

composer codeigniter4/framework (Composer)

Affected versions

< 4.2.11

Patched versions

4.2.11

Description

Impact

When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to DatabaseHandler, MemcachedHandler, or RedisHandler, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages).

Patches

Upgrade to version 4.2.11 or later.

Workarounds

  • Use only one session cookie.

References

For more information

If you have any questions or comments about this advisory:

References

@MGatner MGatner published to codeigniter4/CodeIgniter4 Dec 22, 2022
Published by the National Vulnerability Database Dec 22, 2022
Published to the GitHub Advisory Database Dec 22, 2022
Reviewed Dec 22, 2022
Last updated Jan 29, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

EPSS score

0.197%
(57th percentile)

Weaknesses

CVE ID

CVE-2022-46170

GHSA ID

GHSA-6cq5-8cj7-g558

Source code

Credits

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