KQL Search

Query Details

Mitigating Security Risks In MCP Implementations

Query

// Mitigating security risks in MCP implementations

// https://www.linkedin.com/posts/0x534c_cybersecurity-azuremcp-securitycompliance-activity-7319697806321938432-xRXh?utm_source=share&utm_medium=member_desktop&rcm=ACoAABpDyEoBICouOcdQOH4JkFdMxQhTXfnQe2w
// https://techcommunity.microsoft.com/blog/microsoft-security-blog/understanding-and-mitigating-security-risks-in-mcp-implementations/4404667

DeviceNetworkEvents
| where TimeGenerated > ago(1h)
| where ActionType == "ListeningConnectionCreated"
| where LocalPort == 5008
| where InitiatingProcessCommandLine has "azure/mcp"

Explanation

This KQL (Kusto Query Language) query is designed to help identify potential security risks related to Microsoft Cloud Platform (MCP) implementations. Here's a simple breakdown of what the query does:

  1. Data Source: It looks at the DeviceNetworkEvents table, which contains information about network-related events on devices.

  2. Time Filter: The query filters the data to only include events that occurred within the last hour (TimeGenerated > ago(1h)).

  3. Action Type: It specifically searches for events where a "ListeningConnectionCreated" action occurred. This means the device has opened a network port to listen for incoming connections.

  4. Port Filter: It further narrows down the results to only include events where the local port being listened on is port 5008 (LocalPort == 5008).

  5. Process Filter: Finally, it checks if the command line of the process that initiated the listening connection includes the term "azure/mcp". This suggests that the process is related to Azure MCP.

In summary, this query is used to detect recent network events where a device has started listening on port 5008 for connections, specifically related to Azure MCP processes. This can help in identifying and mitigating potential security risks associated with MCP implementations.