AWS apigateway documentation change
Summary
Simplified explanations of IAM policy Resource and Condition elements. Removed details about NotResource requirement, logical operations in conditions, and placeholder variables.
Security assessment
The changes refine existing security documentation but do not address a specific vulnerability or incident. While IAM policies are security-related, there's no evidence this update fixes a security flaw.
Diff
diff --git a/apigateway/latest/developerguide/security_iam_service-with-iam.md b/apigateway/latest/developerguide/security_iam_service-with-iam.md index bc2377a43..9cfaf6c09 100644 --- a//apigateway/latest/developerguide/security_iam_service-with-iam.md +++ b//apigateway/latest/developerguide/security_iam_service-with-iam.md @@ -105,3 +105 @@ Administrators can use AWS JSON policies to specify who has access to what. That -The `Resource` JSON policy element specifies the object or objects to which the action applies. Statements must include either a `Resource` or a `NotResource` element. As a best practice, specify a resource using its [Amazon Resource Name (ARN)](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference-arns.html). You can do this for actions that support a specific resource type, known as _resource-level permissions_. - -For actions that don't support resource-level permissions, such as listing operations, use a wildcard (*) to indicate that the statement applies to all resources. +The `Resource` JSON policy element specifies the object or objects to which the action applies. As a best practice, specify a resource using its [Amazon Resource Name (ARN)](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference-arns.html). For actions that don't support resource-level permissions, use a wildcard (*) to indicate that the statement applies to all resources. @@ -133,7 +131 @@ Administrators can use AWS JSON policies to specify who has access to what. That -The `Condition` element (or `Condition` _block_) lets you specify conditions in which a statement is in effect. The `Condition` element is optional. You can create conditional expressions that use [condition operators](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition_operators.html), such as equals or less than, to match the condition in the policy with values in the request. - -If you specify multiple `Condition` elements in a statement, or multiple keys in a single `Condition` element, AWS evaluates them using a logical `AND` operation. If you specify multiple values for a single condition key, AWS evaluates the condition using a logical `OR` operation. All of the conditions must be met before the statement's permissions are granted. - -You can also use placeholder variables when you specify conditions. For example, you can grant an IAM user permission to access a resource only if it is tagged with their IAM user name. For more information, see [IAM policy elements: variables and tags](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_variables.html) in the _IAM User Guide_. - -AWS supports global condition keys and service-specific condition keys. To see all AWS global condition keys, see [AWS global condition context keys](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html) in the _IAM User Guide_. +The `Condition` element specifies when statements execute based on defined criteria. You can create conditional expressions that use [condition operators](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition_operators.html), such as equals or less than, to match the condition in the policy with values in the request. To see all AWS global condition keys, see [AWS global condition context keys](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html) in the _IAM User Guide_.