CVE-2002-20001
Cisco Router DHEater CVE
Description
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.
INFO
Published Date :
Nov. 11, 2021, 7:15 p.m.
Last Modified :
April 23, 2024, 7:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2002-20001 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2002-20001
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2002-20001.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf | Third Party Advisory |
| https://dheatattack.com | Third Party Advisory |
| https://dheatattack.gitlab.io/ | |
| https://github.com/Balasys/dheater | Product |
| https://github.com/mozilla/ssl-config-generator/issues/162 | Issue Tracking |
| https://gitlab.com/dheatattack/dheater | |
| https://ieeexplore.ieee.org/document/10374117 | |
| https://support.f5.com/csp/article/K83120834 | Third Party Advisory |
| https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt | Third Party Advisory |
| https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ | Third Party Advisory |
| https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ | Issue Tracking |
| https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol | Exploit Technical Description |
| https://www.suse.com/support/kb/doc/?id=000020510 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
D(HE)ater is a proof of concept implementation of the D(HE)at attack (CVE-2002-20001) through which denial-of-service can be performed by enforcing the Diffie-Hellman key exchange. (read-only clone of the original GitLab project)
tls dhe diffie-hellman-algorithm denial-of-service overloading ssh attack security-tools ssl poc security ddos ddos-attack ddos-attack-tool ddos-tool diffie-hellman-groups diffie-hellman-key ddos-attack-tools dos-attack dos-attack-tool
Dockerfile Python
SSH server & client security auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)
auditing security ssh
Python Shell Batchfile Dockerfile Roff
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2002-20001 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2002-20001 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 23, 2024
Action Type Old Value New Value Added Reference MITRE https://ieeexplore.ieee.org/document/10374117 [No types assigned] -
CVE Modified by [email protected]
Jan. 11, 2024
Action Type Old Value New Value Added Reference MITRE https://dheatattack.gitlab.io/ [No types assigned] -
CVE Modified by [email protected]
Sep. 25, 2023
Action Type Old Value New Value Changed Description 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)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. 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. Added Reference https://gitlab.com/dheatattack/dheater [No Types Assigned] -
CPE Deprecation Remap by [email protected]
Aug. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:f5:traffix_sdc:5.1.0:*:*:*:*:*:*:* OR *cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Aug. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:f5:traffix_sdc:5.2.0:*:*:*:*:*:*:* OR *cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.2.0:*:*:*:*:*:*:* -
Reanalysis by [email protected]
Jul. 19, 2023
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:stormshield:stormshield_management_center:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.3 *cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* versions from (including) 2.7.0 up to (excluding) 4.3.16 *cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.6.3 -
Modified Analysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf Third Party Advisory Changed Reference Type https://dheatattack.com No Types Assigned https://dheatattack.com Third Party Advisory Changed Reference Type https://github.com/Balasys/dheater Third Party Advisory https://github.com/Balasys/dheater Product Changed Reference Type https://github.com/mozilla/ssl-config-generator/issues/162 Third Party Advisory https://github.com/mozilla/ssl-config-generator/issues/162 Issue Tracking Changed Reference Type https://support.f5.com/csp/article/K83120834 No Types Assigned https://support.f5.com/csp/article/K83120834 Third Party Advisory Changed Reference Type https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt No Types Assigned https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt Third Party Advisory Changed Reference Type https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ No Types Assigned https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ Third Party Advisory Changed Reference Type https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ Third Party Advisory https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ Issue Tracking Changed Reference Type https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol Exploit, Third Party Advisory https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol Exploit, Technical Description Changed Reference Type https://www.suse.com/support/kb/doc/?id=000020510 No Types Assigned https://www.suse.com/support/kb/doc/?id=000020510 Third Party Advisory Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_w1750d:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:* *cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:* *cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_service_proxy:1.6.0:*:*:*:*:kubernetes:*:* *cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 17.1.0 *cpe:2.3:a:f5:big-iq_centralized_management:7.1.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.2.0 *cpe:2.3:a:f5:f5os-a:1.3.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:f5os-a:1.3.1:*:*:*:*:*:*:* *cpe:2.3:a:f5:f5os-c:*:*:*:*:*:*:*:* versions from (including) 1.3.0 up to (including) 1.3.2 *cpe:2.3:a:f5:f5os-c:1.5.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:f5os-c:1.5.1:*:*:*:*:*:*:* *cpe:2.3:a:f5:traffix_sdc:5.1.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:traffix_sdc:5.2.0:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:* versions from (including) 10.06.0000 up to (excluding) 10.06.0180 *cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:* versions from (including) 10.07.0000 up to (excluding) 10.07.0030 *cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:* versions from (including) 10.08.0000 up to (excluding) 10.08.0010 *cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:* versions from (including) 10.09.0000 up to (excluding) 10.09.0002 OR cpe:2.3:h:hpe:aruba_cx_4100i:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6100:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6200f:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6200m:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6300f:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6300m:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6405:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_6410:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8320:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8325-32c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8325-48y8c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-12c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-16y2c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-24xf2c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-32y4c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-48xt4c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8360-48y6c:-:*:*:*:*:*:*:* cpe:2.3:h:hpe:aruba_cx_8400:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 09, 2022
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K83120834 [No Types Assigned] Added Reference https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ [No Types Assigned] Added Reference https://www.suse.com/support/kb/doc/?id=000020510 [No Types Assigned] Added Reference https://dheatattack.com [No Types Assigned] Added Reference https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt [No Types Assigned] -
CVE Modified by [email protected]
Nov. 08, 2022
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/Balasys/dheater No Types Assigned https://github.com/Balasys/dheater Third Party Advisory Changed Reference Type https://github.com/mozilla/ssl-config-generator/issues/162 No Types Assigned https://github.com/mozilla/ssl-config-generator/issues/162 Third Party Advisory Changed Reference Type https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ No Types Assigned https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ Third Party Advisory Changed Reference Type https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol No Types Assigned https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol Exploit, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:balasys:dheater:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 11, 2021
Action Type Old Value New Value Added Reference https://github.com/mozilla/ssl-config-generator/issues/162 [No Types Assigned] Added Reference https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2002-20001 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2002-20001
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.17 }} 0.28%
score
0.85156
percentile