CVE-2002-20001
Vulnerability from cvelistv5
Published
2021-11-11 00:00
Modified
2024-08-08 04:06
Severity ?
Summary
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.
References
cve@mitre.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdfThird Party Advisory
cve@mitre.orghttps://dheatattack.comThird Party Advisory
cve@mitre.orghttps://dheatattack.gitlab.io/
cve@mitre.orghttps://github.com/Balasys/dheaterProduct
cve@mitre.orghttps://github.com/mozilla/ssl-config-generator/issues/162Issue Tracking
cve@mitre.orghttps://gitlab.com/dheatattack/dheater
cve@mitre.orghttps://ieeexplore.ieee.org/document/10374117
cve@mitre.orghttps://support.f5.com/csp/article/K83120834Third Party Advisory
cve@mitre.orghttps://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txtThird Party Advisory
cve@mitre.orghttps://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/Third Party Advisory
cve@mitre.orghttps://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/Issue Tracking
cve@mitre.orghttps://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_ProtocolExploit, Technical Description
cve@mitre.orghttps://www.suse.com/support/kb/doc/?id=000020510Third Party Advisory
Impacted products
n/an/a
Show details on NVD website

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  }
}


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