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RDS DB cluster parameter group configured with TLS Version below 1.2 Affecting RDS service in AWS

Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Data / Encryption in Transit

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  • Snyk ID SNYK-CC-00765
  • credit Snyk Research Team
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Description

Enforcing a TLS version below 1.2 for RDS DB cluster parameter groups can expose data in transit to interception or compromise due to known vulnerabilities in older TLS versions. It is essential to use TLS 1.2 or higher to ensure secure encryption standards are met and to comply with industry best practices for data protection.

How to fix?

Setrequire_secure_transport , rds.force_ssl to ON and 1 respectively and tls_version, ssl_min_protocol_version and ssl_max_protocol_version to TLSv1.2 or higher in aws_rds_cluster_parameter_group.

Example Configuration


resource "aws_rds_cluster_parameter_group" "allow1" {
  name        = "cluster-parameter-765"
  family      = "aurora-mysql5.7" 
  description = "Example DB parameter group for TLS settings"

  parameter {
    name  = "require_secure_transport"
    value = "ON"
    apply_method = "pending-reboot"
  }
  parameter {
    name  = "tls_version"
    value = "TLSv1.2"
    apply_method = "pending-reboot"
  } 
}

resource "aws_rds_cluster_parameter_group" "allow2" {
  name        = "example-parameter-group"
  family      = "aurora-postgresql15" 
  description = "Example DB parameter group for TLS settings"

  parameter {
    name  = "rds.force_ssl"
    value = "1"
    apply_method = "pending-reboot"
  }
  parameter {
    name  = "ssl_min_protocol_version"
    value = "TLSv1.2"
    apply_method = "pending-reboot"
  } 
   parameter {
    name  = "ssl_max_protocol_version"
    value = "TLSv1.3"
    apply_method = "pending-reboot"
  } 
}