GHSA-w6jr-wj64-mc9x
Deserialization of Untrusted Data in Codeigniter4
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | codeigniter4/framework | < 4.1.6 | 4.1.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Deserialization of Untrusted Data was found in the `old()` function in CodeIgniter4.
Remote attackers may inject auto-loadable arbitrary objects with this vulnerability,
and possibly execute existing PHP code on the server.
We are aware of a working exploit, which can lead to SQL injection.
### Patches
Upgrade to v4.1.6 or later.
### Workarounds
Do not use:
- `old()` and form_helper
- `RedirectResponse::withInput()` and `redirect()->withInput()`
### References
- [PHP Object Injection | OWASP](https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection)
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)
* Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-w6jr-wj64-mc9x
- https://nvd.nist.gov/vuln/detail/CVE-2022-21647
- https://github.com/codeigniter4/CodeIgniter4/commit/ce95ed5765256e2f09f3513e7d42790e0d6948f5
- https://github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-21647.yaml
- https://github.com/codeigniter4/CodeIgniter4