T0840_network-connection-enumeration
DevOps & SecurityAdversaries may perform network connection enumeration to discover information about device communication patterns.
How to use this skill
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T0840 Network Connection Enumeration
High-Level Description
Adversaries may perform network connection enumeration to discover information about device communication patterns. If an adversary can inspect the state of a network connection with tools, such as Netstat, in conjunction with System Firmware, then they can determine the role of certain devices on the network . The adversary can also use Network Sniffing to watch network traffic for details about the source, destination, protocol, and content.
Kill Chain Phase
- Discovery (TA0102)
Platforms: ICS
What to Check
- Identify if Network Connection Enumeration technique is applicable to target ICS environment
- Check ICS/SCADA systems for indicators of Network Connection Enumeration
- Verify mitigations are bypassed or absent (1 known mitigations)
- Assess detection coverage (1 detection strategies)
How to Test
Identify Attack Surface
Determine if the target ICS/SCADA environment is susceptible to Network Connection Enumeration by examining operational technology systems and network architecture.
Assess Existing Defenses
Review whether mitigations for T0840 are in place. If defenses are absent or misconfigured, this technique may be exploitable in the ICS environment.
Remediation Guide
M0816 Mitigation Limited or Not Effective
Network connection enumeration is likely obtained by using common system tools (e.g., netstat, ipconfig).
Detection
Detection of Network Connection Enumeration
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| Network Connection Enumeration technique applicable | Low | Discovery |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-200 | Exposure of Sensitive Information |