RDS Instance Log Disconnections Disabled

• Query id: d53f4123-f8d8-4224-8cb3-f920b151cc98
• Query name: RDS Instance Log Disconnections Disabled
• Platform: Terraform
• Severity: Medium
• Category: Observability
• CWE: 778
• URL: Github

Description

log_disconnections parameter should be set to ON for RDS instances
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - tf file

resource "alicloud_db_instance" "default" {
    engine = "MySQL"
    engine_version = "5.6"
    db_instance_class = "rds.mysql.t1.small"
    db_instance_storage = "10"
    parameters = [{
        name = "innodb_large_prefix"
        value = "ON"
    },{
        name = "connect_timeout"
        value = "50"
    },{
        name = "log_disconnections"
        value = "OFF"
    }]
}

Positive test num. 2 - tf file

resource "alicloud_db_instance" "default" {
    engine = "MySQL"
    engine_version = "5.6"
    db_instance_class = "rds.mysql.t1.small"
    db_instance_storage = "10"
    parameters = [{
        name = "innodb_large_prefix"
        value = "ON"
    },{
        name = "connect_timeout"
        value = "50"
    }]
}

Positive test num. 3 - tf file

resource "alicloud_db_instance" "default" {
    engine = "MySQL"
    engine_version = "5.6"
    db_instance_class = "rds.mysql.t1.small"
    db_instance_storage = "10"
}

Code samples without security vulnerabilities

Negative test num. 1 - tf file

resource "alicloud_db_instance" "default" {
    engine = "MySQL"
    engine_version = "5.6"
    db_instance_class = "rds.mysql.t1.small"
    db_instance_storage = "10"
    parameters = [{
        name = "innodb_large_prefix"
        value = "ON"
    },{
        name = "connect_timeout"
        value = "50"
    },{
        name = "log_disconnections"
        value = "ON"
    }]
}