GHSA-gmx7-gr5q-85w5 magic-crypt uses insecure cryptographic algorithms
The magic-crypt Rust library uses insecure DES encryption and lacks integrity checks, allowing attackers to decrypt data via padding oracle attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is GHSA-gmx7-gr5q-85w5?
GHSA-gmx7-gr5q-85w5 is a vulnerability in magic-crypt, published on 28 Dec 2024.
Official description
This crate uses a number of cryptographic algorithms that are no longer considered secure and it uses them in ways that do not guarantee the integrity of the encrypted data.
MagicCrypt64 uses the insecure DES block cipher in CBC mode without authentication. This allows for practical brute force and padding oracle attacks and does not protect the integrity of the encrypted data. Key and IV are generated from user input using CRC64, which is not at all a key derivation function.
MagicCrypt64, MagicCrypt128, MagicCrypt192, and MagicCrypt256 are all vulnerable to padding-oracle attacks. None of them protect the integrity of the ciphertext. Furthermore, none use password-based key derivation functions, even though the key is intended to be generated from a password.
Each of the implementations are unsound in that they use uninitialized memory without MaybeUninit or equivalent structures.
For more information, visit the issue.
Which versions are affected by GHSA-gmx7-gr5q-85w5?
3 open source packages ship an affected version, including magic-crypt.
| Package | Affected | Fixed in |
|---|---|---|
magic-crypt crates.io | All versions to 4.0.1 | None |
magic-crypt crates.io | All versions to 4.0.1 | None |
magic-crypt crates.io | From 0.0.0-0 | None |
How do I fix GHSA-gmx7-gr5q-85w5?
No fix has been published for GHSA-gmx7-gr5q-85w5 yet. Limit exposure of the affected software until one is available.
Is GHSA-gmx7-gr5q-85w5 being exploited?
There is no known exploitation of GHSA-gmx7-gr5q-85w5 in the wild and no public exploit code.
Sources
Also known as RUSTSEC-2024-0430.