Headline
GHSA-6jvc-q2x7-pchv: AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field
The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field. This hash can be used to brute force the plaintext, if the hash is readable to the attacker. AWS now blocks this metadata field, but older SDK versions still send it.
AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field
Moderate severity GitHub Reviewed Published Dec 28, 2022 • Updated Dec 30, 2022
Related news
CVE-2022-2582: service/s3/s3crypto: V2 Client Release (#3403) · aws/aws-sdk-go@35fa6dd
The AWS S3 Crypto SDK sends an unencrypted hash of the plaintext alongside the ciphertext as a metadata field. This hash can be used to brute force the plaintext, if the hash is readable to the attacker. AWS now blocks this metadata field, but older SDK versions still send it.