Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningThere is no fixed version for github.com/aws/aws-sdk-go/service/s3/s3crypto
.
github.com/aws/aws-sdk-go/service/s3/s3crypto is an AWS SDK for the Go programming language.
Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm in the AWS S3 Crypto SDK for GoLang. The SDK allows users to encrypt files with AES-CBC without computing a Message Authentication Code (MAC), which then allows an attacker who has write access to the target's S3 bucket and can observe whether or not an endpoint with access to the key can decrypt a file, they can reconstruct the plaintext with (on average) 128*length (plaintext) queries to the endpoint, by exploiting CBC's ability to manipulate the bytes of the next block and PKCS5 padding errors.
Note: Version 1.33.0 introduces two new functions: decryption_client_v2
and encryption_client_v2
, which deprecates the vulnerable AES-CBC
component. However, the old vulnerable functions can still be used in all versions, and using these clients still allows for the vulnerability to be exploited using the AES-CBC cipher. As a result, there's no fixed version for this vulnerability.
Users are advised to use decryption_client_v2
and encryption_client_v2
introduced in version 1.33.0 which fixes the vulnerability.