PHP Deserialization Security Guide

In PHP, string deserialization escape is often caused by insecure deserialization operations, allowing attackers to execute malicious code by crafting specific serialized strings. To address this issue, some possible solutions include:

1. Utilize secure deserialization functions: In PHP, using the unserialize() function to deserialize strings is not secure. Instead, consider using other secure deserialization functions such as json_decode() or alternative functions from the PHP serialization library.
2. Validating and filtering input: It is crucial to validate and filter input before deserializing, which can be done using filter functions, regular expressions, or other methods to ensure the validity of the input data.
3. Practicing security with serialization and deserialization: It is important to follow security practices when performing serialization and deserialization operations, such as using signatures or encryption to protect the integrity and confidentiality of serialized data.
4. Restricting permissions for deserialization: In deserialization operations, it is important to limit the permissions and scope of execution to prevent the execution of malicious code or access to sensitive data.

By using the above methods, the security issue of PHP deserialization string escaping can be effectively resolved.