Vulnerability Details : CVE-2022-35943
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)
Vulnerability category: Cross site scripting (XSS)Cross-site request forgery (CSRF)
Products affected by CVE-2022-35943
- cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:*
- cpe:2.3:a:codeigniter:shield:1.0.0:beta:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-35943
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-35943
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L |
1.6
|
4.2
|
GitHub, Inc. |
CWE ids for CVE-2022-35943
-
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-35943
-
https://jub0bs.com/posts/2021-01-29-great-samesite-confusion
The great SameSite confusion :: jub0bs.comThird Party Advisory
-
https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq
SameSite Attackers may Bypass the CSRF Protection · Advisory · codeigniter4/shield · GitHubExploit;Mitigation;Third Party Advisory
-
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
SameSite cookies - HTTP | MDNThird Party Advisory
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https://codeigniter4.github.io/userguide/libraries/security.htm
Page not found · GitHub PagesBroken Link
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