CAPEC-496

ICMP Fragmentation
Draft
2014-06-23 00:00 +00:00
2019-04-04 00:00 +00:00

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Description

An attacker may execute a ICMP Fragmentation attack against a target with the intention of consuming resources or causing a crash. The attacker crafts a large number of identical fragmented IP packets containing a portion of a fragmented ICMP message. The attacker these sends these messages to a target host which causes the host to become non-responsive. Another vector may be sending a fragmented ICMP message to a target host with incorrect sizes in the header which causes the host to hang.

Informations

Prerequisites

This type of an attack requires the target system to be running a vulnerable implementation of IP, and the attacker needs to ability to send arbitrary sized ICMP packets to the target.

Mitigations

This attack may be mitigated through egress filtering based on ICMP payload so a network is a "good neighbor" to other networks. Bad IP implementations become patched, so using the proper version of a browser or OS is recommended.

Related Weaknesses

CWE-ID Weakness Name
CWE-770 Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
CWE-404 Improper Resource Shutdown or Release
The product does not release or incorrectly releases a resource before it is made available for re-use.

References

REF-425

ICMP Attacks Illustrated
http://www.sans.org/reading-room/whitepapers/threats/icmp-attacks-illustrated-477?show=icmp-attacks-illustrated-477&cat=threats

Submission

Name Organization Date Date Release
CAPEC Content Team The MITRE Corporation 2014-06-23 +00:00

Modifications

Name Organization Date Comment
CAPEC Content Team The MITRE Corporation 2019-04-04 +00:00 Updated Related_Weaknesses