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CVE-2002-20001

high · 7.5

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.

7.5
CVSS
24.6%
EPSS (exploit prob.)
98th
EPSS percentile
2021-11-11
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-400

Affected products

VendorProductAffected versions
balasysdheaterall versions
siemensscalance_w1750d_firmwareall versions
siemensscalance_w1750dall versions
suselinux_enterprise_server11
suselinux_enterprise_server12
suselinux_enterprise_server15
f5big-ip_access_policy_manager>= 13.1.0, < 16.1.4
f5big-ip_access_policy_manager>= 17.0.0, < 17.1.0
f5big-ip_advanced_firewall_manager>= 13.1.0, <= 17.1.2
f5big-ip_advanced_firewall_manager17.5.0
f5big-ip_advanced_web_application_firewall>= 13.1.0, <= 17.1.2
f5big-ip_advanced_web_application_firewall17.5.0
f5big-ip_analytics>= 13.1.0, <= 17.1.2
f5big-ip_analytics17.5.0
f5big-ip_application_acceleration_manager>= 13.1.0, <= 17.1.2
f5big-ip_application_acceleration_manager17.5.0
f5big-ip_application_security_manager>= 13.1.0, <= 17.1.2
f5big-ip_application_security_manager17.5.0
f5big-ip_application_visibility_and_reporting>= 13.1.0, <= 17.1.2
f5big-ip_application_visibility_and_reporting17.5.0
f5big-ip_carrier-grade_nat>= 13.1.0, <= 17.1.2
f5big-ip_carrier-grade_nat17.5.0
f5big-ip_ddos_hybrid_defender>= 13.1.0, <= 17.1.2
f5big-ip_ddos_hybrid_defender17.5.0
f5big-ip_domain_name_system>= 13.1.0, <= 17.1.2
f5big-ip_domain_name_system17.5.0
f5big-ip_edge_gateway>= 13.1.0, <= 17.1.2
f5big-ip_edge_gateway17.5.0
f5big-ip_fraud_protection_service>= 13.1.0, <= 17.1.2
f5big-ip_fraud_protection_service17.5.0
f5big-ip_global_traffic_manager>= 13.1.0, <= 17.1.2
f5big-ip_global_traffic_manager17.5.0
f5big-ip_link_controller>= 13.1.0, <= 17.1.2
f5big-ip_link_controller17.5.0
f5big-ip_local_traffic_manager>= 13.1.0, <= 17.1.2
f5big-ip_local_traffic_manager17.5.0
f5big-ip_policy_enforcement_manager>= 13.1.0, <= 17.1.2
f5big-ip_policy_enforcement_manager17.5.0
f5big-ip_service_proxy1.6.0
f5big-ip_ssl_orchestrator>= 13.1.0, <= 17.1.2

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2002-20001