Improper Verification of Cryptographic Signature Affecting aws-encryption-sdk package, versions [2.0.0, 2.2.0) [,1.9.0)


0.0
medium

Snyk CVSS

    Attack Complexity High

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  • Snyk ID SNYK-PYTHON-AWSENCRYPTIONSDK-1298656
  • published 2 Jun 2021
  • disclosed 1 Jun 2021
  • credit Unknown

Introduced: 1 Jun 2021

CVE NOT AVAILABLE CWE-347 Open this link in a new tab

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

References