Get full details of an ACL rule including its script and role requirements (requires SCRIPTING_ENABLED=true)
AI agents call get_acl to retrieve information from ServiceNow-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read operation that retrieves access control list rule details. While the severity is elevated to medium (not low) because ACL rules contain sensitive security configuration information that could inform privilege escalation or reconnaissance attacks if misused by a compromised agent, the tool itself performs no modifications, execution, or deletion.
From the tool's definition Tool name 'get_acl' and description 'Get full details of an ACL rule' indicate retrieval of access control data without modification. The specification of 'including its script and role requirements' confirms query-only functionality.
Attacks that exploit this kind of access
Get full details of an ACL rule including its script and role requirements (requires SCRIPTING_ENABLED=true). It is categorised as a Read tool in the ServiceNow-MCP MCP Server, which means it retrieves data without modifying state.
Register the ServiceNow- MCP server in PolicyLayer and add a rule for get_acl: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ServiceNow-MCP. Nothing to install.
get_acl is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_acl rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_acl. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_acl is provided by the ServiceNow- MCP server (tedorigawa001/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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