[TagAwareCipher] - Decryption Failure (Regex Match)
### Impact
Vulnerability in **SecureProps** involves a regex failing to detect tags during decryption of encrypted data.
This occurs when the encrypted data has been encoded with `NullEncoder` and passed to `TagAwareCipher`, and contains special characters such as `\n`. As a result, the decryption process is skipped since the tags are not detected. This causes the encrypted data to be returned in plain format.
The vulnerability affects users who implement `TagAwareCipher` with any base cipher that has `NullEncoder` (not default).
### Patches
The patch for the issue has been released. Users are advised to update to version **1.2.2**.
### Workarounds
**The main recommendation is to update to the latest version as there are no breaking changes.**
If that's not possible, you can use the default `Base64Encoder` with the base cipher decorated with `TagAwareCipher` to prevent special characters in the encrypted string from interfering with regex tag detection logic.
This workaround is safe but may involve double encoding since `TagAwareCipher` uses `Base64Encoder` by default.
### References
Reported issue:
https://github.com/IlicMiljan/Secure-Props/issues/20
Pull request resolving bug:
https://github.com/IlicMiljan/Secure-Props/pull/21