Improper Verification of Cryptographic Signature Affecting aws-encryption-sdk package, versions [2.0.0, 2.2.0) [,1.9.0)
Snyk CVSS
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Test your applications- Snyk ID SNYK-PYTHON-AWSENCRYPTIONSDK-1298656
- published 2 Jun 2021
- disclosed 1 Jun 2021
- credit Unknown
How to fix?
Upgrade aws-encryption-sdk
to version 2.2.0, 1.9.0 or higher.
Overview
aws-encryption-sdk is an AWS Encryption SDK implementation for Python
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature. The ESDK uses AES-GCM encryption and all plaintext is verified before being released to a caller. There is no impact on the integrity of the ciphertext or decrypted plaintext, however some callers may rely on the the ECDSA signature for non-repudiation. Without validating the ECDSA signature, an actor with trusted KMS permissions to decrypt a message may also be able to encrypt messages