CVE-2022-35943

SameSite may allow cross-site request forgery (CSRF) protection to be bypassed

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Shield is an authentication and authorization framework for CodeIgniter 4. This vulnerability may allow [SameSite Attackers](https://canitakeyoursubdomain.name/) to bypass the [CodeIgniter4 CSRF protection](https://codeigniter4.github.io/userguide/libraries/security.html) mechanism with CodeIgniter Shield. For this attack to succeed, the attacker must have direct (or indirect, e.g., XSS) control over a subdomain site (e.g., `https://a.example.com/`) of the target site (e.g., `http://example.com/`). Upgrade to **CodeIgniter v4.2.3 or later** and **Shield v1.0.0-beta.2 or later**. As a workaround: set `Config\Security::$csrfProtection` to `'session,'`remove old session data right after login (immediately after ID and password match) and regenerate CSRF token right after login (immediately after ID and password match)

Shield es un marco de autenticación y autorización para CodeIgniter 4. Esta vulnerabilidad puede permitir a [Atacantes del Mismo Sitio](https://canitakeyoursubdomain.name/) omitir el mecanismo de [protección CSRF de CodeIgniter4](https://codeigniter4.github.io/userguide/libraries/security.html) con CodeIgniter Shield. Para que este ataque tenga éxito, el atacante debe tener control directo (o indirecto, por ejemplo, de tipo XSS) sobre un sitio subdominio (por ejemplo, "https://a.example.com/") del sitio objetivo (por ejemplo, "http://example.com/"). Actualice a **CodeIgniter versiones v4.2.3 o posteriores** y **Shield versiones v1.0.0-beta.2 o posteriores**. Como mitigación: establezca "Config\Security::$csrfProtection" como ""sesión,""elimine los datos de la sesión antigua justo después del inicio de sesión (inmediatamente después de que el ID y la contraseña coincidan) y regenere el token CSRF justo después del inicio de sesión (inmediatamente después de que el ID y la contraseña coincidan)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-07-15 CVE Reserved
2022-08-12 CVE Published
2024-04-02 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (4)

URL	Tag	Source
https://codeigniter4.github.io/userguide/libraries/security.htm	Broken Link
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite	Third Party Advisory
https://jub0bs.com/posts/2021-01-29-great-samesite-confusion	Third Party Advisory

URL	Date	SRC
https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Codeigniter Search vendor "Codeigniter"		Codeigniter Search vendor "Codeigniter" for product "Codeigniter"				< 4.2.3 Search vendor "Codeigniter" for product "Codeigniter" and version " < 4.2.3"		-		Affected
Codeigniter Search vendor "Codeigniter"		Shield Search vendor "Codeigniter" for product "Shield"				1.0.0 Search vendor "Codeigniter" for product "Shield" and version "1.0.0"		beta		Affected