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No password policy enabled

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Metadata

Id: terraform-aws-no-password-policy-enabled

Provider: AWS

Platform: Terraform

Severity: Medium

Category: Insecure Configurations

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Description

Ensuring strong AWS IAM password security involves configuring both the password_length and password_reset_required attributes in the aws_iam_user_login_profile resource. Failing to set a sufficient password_length or omitting the password_reset_required = true option, as shown below, can lead to accounts being protected by weak or reused passwords, which increases the risk of unauthorized access.

resource "aws_iam_user_login_profile" "example" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"
  password_length = 13
  password_reset_required = false
}

By requiring users to reset passwords on first use and enforcing adequate password length, as in the following example, organizations can better defend against brute-force attacks and reduce credential compromise risk.

resource "aws_iam_user_login_profile" "example" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"
  password_length = 15
  password_reset_required = true
}

Compliant Code Examples

resource "aws_iam_user_login_profile" "negative1" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"

  password_reset_required = true

  password_length = 15
}

Non-Compliant Code Examples

resource "aws_iam_user_login_profile" "positive2" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"

  password_reset_required = false

  password_length = 15
}

resource "aws_iam_user_login_profile" "positive3" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"

  password_reset_required = true

  password_length = 13
}

resource "aws_iam_user_login_profile" "positive6" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"

  password_length = 13
}

resource "aws_iam_user_login_profile" "positive7" {
  user    = aws_iam_user.example.name
  pgp_key = "keybase:some_person_that_exists"

  password_reset_required = false
  password_length = 13
}