CAPEC-331 — ICMP IP Total Length Field Probe
CAPEC-331: ICMP IP Total Length Field Probe
MITRE CAPEC attack pattern
| Status | Stable |
| Typical severity | Low |
| Likelihood of attack | Medium |
| Catalogue | CAPEC 3.9 (2023-01-24) |
Description
An adversary sends a UDP packet to a closed port on the target machine to solicit an IP Header's total length field value within the echoed 'Port Unreachable" error message. This type of behavior is useful for building a signature-base of operating system responses, particularly when error messages contain other types of information that is useful identifying specific operating system responses.
Where this sits in the chain
A finding maps to a weakness (CWE), a weakness is exploited by an attack pattern (CAPEC), and an attack pattern shows up in ATT&CK as observed adversary behaviour. This page is the middle hop.
Weaknesses exploited: CWE-204
Prerequisites
- The ability to monitor and interact with network communications. Access to at least one host, and the privileges to interface with the network interface card.
Consequences
- Confidentiality: Read Data
- Confidentiality, Access Control, Authorization: Bypass Protection Mechanism, Hide Activities