The Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side) to send arbitrary numbers that are actually not public keys, and trigger expensive server-side DHE modular-exponentiation calculations, aka a D(HE)at or D(HE)ater attack. The client needs very little CPU resources and network bandwidth. The attack may be more disruptive in cases where a client can require a server to select its largest supported key size. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE.
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References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-11-11T00:00:00
Updated: 2024-08-08T04:06:55.288Z
Reserved: 2021-11-11T00:00:00
Link: CVE-2002-20001
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-11-11T19:15:07.380
Modified: 2024-04-23T07:15:41.853
Link: CVE-2002-20001
Redhat
No data.