fix(bedrock-005): remove memory permissions not required when memory is disabled - #39
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sethsec merged 1 commit intoSep 4, 2026
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Description
bedrock-005listsbedrock-agentcore:CreateMemoryandbedrock-agentcore:GetMemoryas required, on the basis that AWS requires them on everyCreateHarnesscall regardless of the memory configuration. That does not hold when memory is disabled, which is what the path's own step 2 does.permissions.requiredbedrock-agentcore:CreateMemoryandbedrock-agentcore:GetMemorynameattackVisualization--memory '{"disabled":{}}'to thecreate-harnesscommand so it matches step 2How to reproduce and testing
Validated in a sandbox account with a role holding only the permissions this path lists, and no
CreateMemoryorGetMemory:create-harnesswith--memory '{"disabled":{}}'reachesREADY, andGetHarnessreportsmemory: {"disabled":{}}on the created resourceInvokeAgentRuntimeCommandreturns the MMDS payload and the credentials resolve to the harness execution roleCREATE_FAILEDandMemory operation failed: ... not authorized to perform: bedrock-agentcore:CreateMemorySo the memory permissions belong to the managed memory default rather than to
CreateHarnessitself. The same permission set is applied to the matching scenario in DataDog/pathfinding-labs#98, where the full attack was run end to end against it.python scripts/validate-schema.py data/paths/bedrock/bedrock-005.yamlpasses.