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Non-encrypted confidential information - Hexadecimal

Description​

The confidential information is encoded in hexadecimal allowing an attacker to view it in plain text when decoding it.

Impact​

Obtain confidential information by decoding hexadecimal.

Recommendation​

Use secure encryption methods to encrypt any sensitive information.

Threat​

An attacker from an adjacent network performing a sniffing attack.

Expected Remediation Time​

⌚ 30 minutes.

Score​

Default score using CVSS 3.1. It may change depending on the context of the vulnerability.

Base​

  • Attack vector: A
  • Attack complexity: H
  • Privileges required: N
  • User interaction: R
  • Scope: U
  • Confidentiality: L
  • Integrity: N
  • Availability: N

Temporal​

  • Exploit code madurity: U
  • Remediation level: X
  • Report confidence: X

Result​

  • Vector string: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:X/RC:X
  • Score:
    • Base: 2.6
    • Temporal: 2.4
  • Severity:
    • Base: Low
    • Temporal: Low

Code Examples​

Compliant code​

All resources use secure encryption algorithms

Resources:
  EncryptedS3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: SKIMS-ENCRYPTED-EXAMPLE-BUCKET
      BucketEncryption:
        ServerSideEncryptionConfiguration:
          - ServerSideEncryptionByDefault:
              SSEAlgorithm: aws:kms
              KMSMasterKeyID: KMS-KEY-ARN
    DeletionPolicy: Delete

Non compliant code​

The resource uses insecure encryption algorithms

Resources:
  EncryptedS3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: SKIMS-ENCRYPTED-EXAMPLE-BUCKET
      BucketEncryption:
        ServerSideEncryptionConfiguration:
          - Encryption: Hexadecimal
    DeletionPolicy: Delete

Requirements​

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