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AWS dms medium security documentation change

Service: dms · 2025-06-04 · Security-related medium

File: dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Selections.md

Summary

Added a warning about case sensitivity in DMS selection rules and source endpoint configurations

Security assessment

Warns about potential misconfigurations that could lead to unintended data exposure if object identifiers are mismatched. Directly addresses security implications of case sensitivity in data migration rules.

Diff

diff --git a/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Selections.md b/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Selections.md
index c60499de5..081e8535a 100644
--- a//dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Selections.md
+++ b//dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Selections.md
@@ -25 +25,5 @@ Parameter | Possible values | Description
-| The name of each schema and table or view to which the rule applies. You can also specify if a rule includes only tables, only views, or both tables and views. If the `rule-action` is either `include` or `exclude`, you can use the "%" percent sign as a wildcard for all or part of the value for the `schema-name` and `table-name` parameter. For information about other wildcards you can use, see [Wildcards in table mapping](./CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Wildcards.html). Thus, you can match these items:
+
+
+###### Warning
+
+DMS selection rules are case-sensitive. However, the selection result also depends on the source endpoint database configuration. If the source endpoint is configured as case-insensitive, the case of the object locator value does not matter. Ensure that correct object identifiers are used in DMS selection rules on a case-insensitive endpoint. | The name of each schema and table or view to which the rule applies. You can also specify if a rule includes only tables, only views, or both tables and views. If the `rule-action` is either `include` or `exclude`, you can use the "%" percent sign as a wildcard for all or part of the value for the `schema-name` and `table-name` parameter. For information about other wildcards you can use, see [Wildcards in table mapping](./CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Wildcards.html). Thus, you can match these items: