CVE-2023-47130

Yii is an open source PHP web framework. yiisoft/yii before version 1.1.29 are vulnerable to Remote Code Execution (RCE) if the application calls unserialize() on arbitrary user input. An attacker may leverage this vulnerability to compromise the host system. A fix has been developed for the 1.1.29 release. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://github.com/yiisoft/yii/commit/37142be4dc5831114a375392e86d6450d4951c06
• https://github.com/yiisoft/yii/security/advisories/GHSA-mw2w-2hj2-fg8q
• https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection
• https://github.com/yiisoft/yii/commit/37142be4dc5831114a375392e86d6450d4951c06
• https://github.com/yiisoft/yii/security/advisories/GHSA-mw2w-2hj2-fg8q
• https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection