CAPEC-328: TCP 'RST' Flag Checksum Probe
This OS fingerprinting probe performs a checksum on any ASCII data contained within the data portion or a RST packet. Some operating systems will report a human-readable text message in the payload of a 'RST' (reset) packet when specific types of connection errors occur. RFC 1122 allows text payloads within reset packets but not all operating systems or routers implement this functionality.
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Overview
CAPEC-328 (TCP 'RST' Flag Checksum Probe) is a detailed-level attack pattern catalogued by MITRE in the Common Attack Pattern Enumeration and Classification (CAPEC). It describes a recurring method attackers use to exploit software weaknesses.
What the attacker needs
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.
Resources required
- A tool capable of sending and receiving packets from a remote system.
Consequences
What a successful CAPEC-328 attack can achieve.
Read Data
Affects: Confidentiality
Bypass Protection Mechanism, Hide Activities
Affects: Confidentiality, Access Control, Authorization
Frequently asked questions
Common questions about CAPEC-328.
- What is CAPEC-328?
- This OS fingerprinting probe performs a checksum on any ASCII data contained within the data portion or a RST packet. Some operating systems will report a human-readable text message in the payload of a 'RST' (reset) packet when specific types of connection errors occur. RFC 1122 allows text payloads within reset packets but not all operating systems or routers implement this functionality.
- What weaknesses does CAPEC-328 target?
- CAPEC-328 exploits 1 CWE weakness, including CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor).
- How severe is CAPEC-328?
- MITRE rates CAPEC-328 as Low severity with medium likelihood of attack.
References
Attack-pattern data is sourced from the MITRE CAPEC catalog (v3.9). Weakness associations link to the corresponding CWE entries on RadicalNotion.AI.
Defend against CAPEC-328
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