Vulnerability-Lookup

BDU:2022-05291 (CVE-2022-20824)

Vulnerability from fstec – Published: 2022-08-25 – Updated: 2022-08-26 – View on bdu.fstec.ru Fixed

Title

Уязвимость реализации протокола Cisco Discovery операционных систем NX-OS, FXOS, позволяющая нарушителю выполнить произвольный код с привилегиями root или вызвать отказ в обслуживании

Summary

Уязвимость реализации протокола Cisco Discovery операционных систем NX-OS, FXOS связана с чтением данных за границами буфера в памяти. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, выполнить произвольный код с привилегиями root или вызвать отказ в обслуживании

Severity

8.3 (High) CVSS 2.0


                      
                        AV:A/AC:L/Au:N/C:C/I:C/A:C

9.6 (Critical) CVSS 3.0


                      
                        CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-121 - Переполнение буфера в стеке

Aliases

CVE-2022-20824

References

1 reference

URL
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n…

Impacted products

2 products from 2 vendors

Vendors

Cisco Systems, Inc.

Products

NX-OS, FX-OS

Versions

7.0(3)i6 (NX-OS), 7.0(3)i7 (NX-OS), 6.2 (NX-OS), 7.0(3)F3 (NX-OS), 9.2 (NX-OS), 7.0(3)IA7 (NX-OS), 9.3 (NX-OS), 7.0(3)IM7 (NX-OS), 7.2(0)D1 (NX-OS), 7.2(0)N1 (NX-OS), 7.2(1)D1 (NX-OS), 7.2(1)N1 (NX-OS), 7.2(2)D1 (NX-OS), 7.3(0)DX (NX-OS), 7.3(0)DY (NX-OS), 7.3(0)N1 (NX-OS), 7.3(1)D1 (NX-OS), 7.3(1)DY (NX-OS), 7.3(1)N1 (NX-OS), 7.3(2)D1 (NX-OS), 7.3(2)N1 (NX-OS), 7.3(4)N1 (NX-OS), 7.3(3)D1 (NX-OS), 7.0(3)IC4 (NX-OS), 7.0(3)IM3 (NX-OS), 7.3(4)D1 (NX-OS), 7.3(5)N1 (NX-OS), 7.3(6)N1 (NX-OS), 7.3(5)D1 (NX-OS), 7.3(7)N1 (NX-OS), от 8.0 до 8.3 включительно (NX-OS), 8.4 (NX-OS), 7.0(0)N1 (NX-OS), 7.3(6)D1 (NX-OS), 7.3(8)N1 (NX-OS), 7.3(7)D1 (NX-OS), 7.3(9)N1 (NX-OS), 7.3(10)N1 (NX-OS), 7.3(8)D1 (NX-OS), 7.3(9)D1 (NX-OS), 7.3(11)N1 (NX-OS), 4.2(1)SV1 (NX-OS), 4.2(1)SV2 (NX-OS), 5.2(1)SM1 (NX-OS), 5.2(1)SM3 (NX-OS), 5.2(1)SV3 (NX-OS), 6.0(2)A3 (NX-OS), 6.0(2)A4 (NX-OS), 6.0(2)A6 (NX-OS), 6.0(2)A7 (NX-OS), 6.0(2)A8 (NX-OS), 6.0(2)U2 (NX-OS), 6.0(2)U3 (NX-OS), 6.0(2)U4 (NX-OS), 6.0(2)U5 (NX-OS), 6.0(2)U6 (NX-OS), 7.0(1)N1 (NX-OS), 7.0(2)N1 (NX-OS), 7.0(3)F1 (NX-OS), 7.0(3)F2 (NX-OS), 7.0(3)I2 (NX-OS), 7.0(3)I3 (NX-OS), 7.0(3)I4 (NX-OS), 7.0(3)I5 (NX-OS), 7.0(3)N1 (NX-OS), 7.0(4)N1 (NX-OS), 7.0(5)N1 (NX-OS), 7.0(6)N1 (NX-OS), 7.0(7)N1 (NX-OS), 7.0(8)N1 (NX-OS), 7.1(0)N1 (NX-OS), 7.1(1)N1 (NX-OS), 7.1(2)N1 (NX-OS), 7.1(3)N1 (NX-OS), 7.1(4)N1 (NX-OS), 7.1(5)N1 (NX-OS), 7.3(0)D1 (NX-OS), 7.3(3)N1 (NX-OS), 5.2(1)SK3 (NX-OS), 5.2(1)SV5 (NX-OS), 8.5 (NX-OS), 2.0 (FX-OS), 2.1 (FX-OS), 1.1 (FX-OS), 2.2 (FX-OS), 2.3 (FX-OS), 2.4 (FX-OS), 2.6 (FX-OS), 2.7 (FX-OS), 2.8 (FX-OS), 2.9 (FX-OS), 2.10 (FX-OS), 2.11 (FX-OS), 2.12 (FX-OS)

Product types

Operating system

Platforms

Cisco Systems, Inc. - - Cisco MDS 9000 Series Multilayer Switches, Inc. - - Cisco Nexus 3000 Series Switches, Inc. - - Cisco Nexus 7000 Series Switches, Inc. - - Cisco Firepower 9300 Security Appliance, Inc. - - Cisco Nexus 5500 Platform Switches, Inc. - - Cisco Nexus 5600 Platform Switches, Inc. - - Cisco Nexus 6000 Series Switches, Inc. - - Cisco Firepower 4100 Series, Inc. - - Cisco Nexus 1000V Switch for Microsoft Hyper-V, Inc. - - Cisco Nexus 1000V Switch for VMware vSphere, Inc. - - Cisco Nexus 9000 Series Fabric Switches in ACI mode, Inc. - - Nexus 9000 Series in Standalone NX-OS Mode, Inc. - - Nexus 1000 Virtual Edge, Inc. - - UCS 6200 Series Fabric Interconnects, Inc. - - UCS 6300 Series Fabric Interconnects, Inc. - - UCS 6400 Series Fabric Interconnects

Mitigations

Установка обновлений из доверенных источников. В связи со сложившейся обстановкой и введенными санкциями против Российской Федерации рекомендуется устанавливать обновления программно-го обеспечения только после оценки всех сопутствующих рисков. Протокол Cisco Discovery включен по умолчанию на всех коммутаторах (исключая Cisco Nexus серии 9000 в режиме ACI). Чтобы определить, включен ли протокол Cisco Discovery на устройствах Cisco MDS или Nexus, используйте команду: show running-config cdp all | include "cdp enable" или: show cdp all Чтобы определить, включен ли протокол Cisco Discovery на устройствах Cisco Nexus серии 9000 в режиме ACI, используйте команду: show cdp all | grep "enabled on" или: show cdp all Протокол Cisco Discovery не может быть полностью отключен на коммутаторах Cisco UCS Fabric Interconnects. Чтобы определить, включен ли протокол Cisco Discovery на устройствах Cisco UCS серий 6200, 6300 и 6400, используйте команду: show configuration | egrep "^ scope|enable cdp" Протокол Cisco Discovery не может быть отключен в программном обеспечении Cisco FXOS. В программном обеспечении Cisco FXOS версии 2.1 и более поздних версий протокол Cisco Discovery включен только на порту mgmt0. Компенсирующие меры: Отключите протокол Cisco Discovery на уязвимых устройствах. Для отключения протокола Cisco Discovery на коммутаторах Cisco MDS и Nexus с ОС Cisco NX-OS, используйте команду: no cdp enable Для отключения протокола Cisco Discovery на коммутаторах Cisco UCS Fabric Interconnect, используйте команду: scope eth-storage enter nw-ctrl-policy default disable cdp Использование рекомендаций производителя: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9

JSON

To clipboard

{
  "CVSS 2.0": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "7.0(3)i6 (NX-OS), 7.0(3)i7 (NX-OS), 6.2 (NX-OS), 7.0(3)F3 (NX-OS), 9.2 (NX-OS), 7.0(3)IA7 (NX-OS), 9.3 (NX-OS), 7.0(3)IM7 (NX-OS), 7.2(0)D1 (NX-OS), 7.2(0)N1 (NX-OS), 7.2(1)D1 (NX-OS), 7.2(1)N1 (NX-OS), 7.2(2)D1 (NX-OS), 7.3(0)DX (NX-OS), 7.3(0)DY (NX-OS), 7.3(0)N1 (NX-OS), 7.3(1)D1 (NX-OS), 7.3(1)DY (NX-OS), 7.3(1)N1 (NX-OS), 7.3(2)D1 (NX-OS), 7.3(2)N1 (NX-OS), 7.3(4)N1 (NX-OS), 7.3(3)D1 (NX-OS), 7.0(3)IC4 (NX-OS), 7.0(3)IM3 (NX-OS), 7.3(4)D1 (NX-OS), 7.3(5)N1 (NX-OS), 7.3(6)N1 (NX-OS), 7.3(5)D1 (NX-OS), 7.3(7)N1 (NX-OS), \u043e\u0442 8.0 \u0434\u043e 8.3 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (NX-OS), 8.4 (NX-OS), 7.0(0)N1 (NX-OS), 7.3(6)D1 (NX-OS), 7.3(8)N1 (NX-OS), 7.3(7)D1 (NX-OS), 7.3(9)N1 (NX-OS), 7.3(10)N1 (NX-OS), 7.3(8)D1 (NX-OS), 7.3(9)D1 (NX-OS), 7.3(11)N1 (NX-OS), 4.2(1)SV1 (NX-OS), 4.2(1)SV2 (NX-OS), 5.2(1)SM1 (NX-OS), 5.2(1)SM3 (NX-OS), 5.2(1)SV3 (NX-OS), 6.0(2)A3 (NX-OS), 6.0(2)A4 (NX-OS), 6.0(2)A6 (NX-OS), 6.0(2)A7 (NX-OS), 6.0(2)A8 (NX-OS), 6.0(2)U2 (NX-OS), 6.0(2)U3 (NX-OS), 6.0(2)U4 (NX-OS), 6.0(2)U5 (NX-OS), 6.0(2)U6 (NX-OS), 7.0(1)N1 (NX-OS), 7.0(2)N1 (NX-OS), 7.0(3)F1 (NX-OS), 7.0(3)F2 (NX-OS), 7.0(3)I2 (NX-OS), 7.0(3)I3 (NX-OS), 7.0(3)I4 (NX-OS), 7.0(3)I5 (NX-OS), 7.0(3)N1 (NX-OS), 7.0(4)N1 (NX-OS), 7.0(5)N1 (NX-OS), 7.0(6)N1 (NX-OS), 7.0(7)N1 (NX-OS), 7.0(8)N1 (NX-OS), 7.1(0)N1 (NX-OS), 7.1(1)N1 (NX-OS), 7.1(2)N1 (NX-OS), 7.1(3)N1 (NX-OS), 7.1(4)N1 (NX-OS), 7.1(5)N1 (NX-OS), 7.3(0)D1 (NX-OS), 7.3(3)N1 (NX-OS), 5.2(1)SK3 (NX-OS), 5.2(1)SV5 (NX-OS), 8.5 (NX-OS), 2.0 (FX-OS), 2.1 (FX-OS), 1.1 (FX-OS), 2.2 (FX-OS), 2.3 (FX-OS), 2.4 (FX-OS), 2.6 (FX-OS), 2.7 (FX-OS), 2.8 (FX-OS), 2.9 (FX-OS), 2.10 (FX-OS), 2.11 (FX-OS), 2.12 (FX-OS)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0438\u0437 \u0434\u043e\u0432\u0435\u0440\u0435\u043d\u043d\u044b\u0445 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u0432.\n\u0412 \u0441\u0432\u044f\u0437\u0438 \u0441\u043e \u0441\u043b\u043e\u0436\u0438\u0432\u0448\u0435\u0439\u0441\u044f \u043e\u0431\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u043e\u0439 \u0438 \u0432\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u043c\u0438 \u0441\u0430\u043d\u043a\u0446\u0438\u044f\u043c\u0438 \u043f\u0440\u043e\u0442\u0438\u0432 \u0420\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u043e\u0439 \u0424\u0435\u0434\u0435\u0440\u0430\u0446\u0438\u0438 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0442\u044c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0441\u043b\u0435 \u043e\u0446\u0435\u043d\u043a\u0438 \u0432\u0441\u0435\u0445 \u0441\u043e\u043f\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0440\u0438\u0441\u043a\u043e\u0432.\n\n\u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u0432\u0441\u0435\u0445 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 (\u0438\u0441\u043a\u043b\u044e\u0447\u0430\u044f Cisco Nexus \u0441\u0435\u0440\u0438\u0438 9000 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 ACI).\n\n\u0427\u0442\u043e\u0431\u044b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c, \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u043b\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 Cisco MDS \u0438\u043b\u0438 Nexus, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:\nshow running-config cdp all | include \"cdp enable\"\n\u0438\u043b\u0438:\nshow cdp all\n\n\u0427\u0442\u043e\u0431\u044b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c, \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u043b\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 Cisco Nexus \u0441\u0435\u0440\u0438\u0438 9000 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 ACI, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:\nshow cdp all | grep \"enabled on\"\n\u0438\u043b\u0438:\nshow cdp all\n\n\u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d \u043d\u0430 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 Cisco UCS Fabric Interconnects.\n\u0427\u0442\u043e\u0431\u044b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c, \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u043b\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 Cisco UCS \u0441\u0435\u0440\u0438\u0439 6200, 6300 \u0438 6400, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:\nshow configuration | egrep \"^ scope|enable cdp\"\n\n\u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d \u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0438 Cisco FXOS.\n\u0412 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0438 Cisco FXOS \u0432\u0435\u0440\u0441\u0438\u0438 2.1 \u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0438\u0445 \u0432\u0435\u0440\u0441\u0438\u0439 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0430 \u043f\u043e\u0440\u0442\u0443 mgmt0.\n\n\u041a\u043e\u043c\u043f\u0435\u043d\u0441\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0440\u044b:\n\u041e\u0442\u043a\u043b\u044e\u0447\u0438\u0442\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b Cisco Discovery \u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445.\n\u0414\u043b\u044f \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Cisco Discovery \u043d\u0430 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 Cisco MDS \u0438 Nexus \u0441 \u041e\u0421 Cisco NX-OS, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:\nno cdp enable\n\n\u0414\u043b\u044f \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Cisco Discovery \u043d\u0430 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 Cisco UCS Fabric Interconnect, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043a\u043e\u043c\u0430\u043d\u0434\u0443:\nscope eth-storage\nenter nw-ctrl-policy default\ndisable cdp\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "24.08.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "26.08.2022",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "25.08.2022",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2022-05291",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2022-20824",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "NX-OS, FX-OS",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Cisco Systems, Inc. - - Cisco MDS 9000 Series Multilayer Switches, Cisco Systems, Inc. - - Cisco Nexus 3000 Series Switches, Cisco Systems, Inc. - - Cisco Nexus 7000 Series Switches, Cisco Systems, Inc. - - Cisco Firepower 9300 Security Appliance, Cisco Systems, Inc. - - Cisco Nexus 5500 Platform Switches, Cisco Systems, Inc. - - Cisco Nexus 5600 Platform Switches, Cisco Systems, Inc. - - Cisco Nexus 6000 Series Switches, Cisco Systems, Inc. - - Cisco Firepower 4100 Series, Cisco Systems, Inc. - - Cisco Nexus 1000V Switch for Microsoft Hyper-V, Cisco Systems, Inc. - - Cisco Nexus 1000V Switch for VMware vSphere, Cisco Systems, Inc. - - Cisco Nexus 9000 Series Fabric Switches in ACI mode, Cisco Systems, Inc. - - Nexus 9000 Series in Standalone NX-OS Mode, Cisco Systems, Inc. - - Nexus 1000 Virtual Edge, Cisco Systems, Inc. - - UCS 6200 Series Fabric Interconnects, Cisco Systems, Inc. - - UCS 6300 Series Fabric Interconnects, Cisco Systems, Inc. - - UCS 6400 Series Fabric Interconnects",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Cisco Discovery \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c NX-OS, FXOS, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0441 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u044f\u043c\u0438 root \u0438\u043b\u0438 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0441\u0442\u0435\u043a\u0435 (CWE-121)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Cisco Discovery \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c NX-OS, FXOS \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0447\u0442\u0435\u043d\u0438\u0435\u043c \u0434\u0430\u043d\u043d\u044b\u0445 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0430\u043c\u0438 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0441 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u044f\u043c\u0438 root \u0438\u043b\u0438 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-121",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,3)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,6)"
}

CVE-2022-20824 (GCVE-0-2022-20824)

Vulnerability from cvelistv5 – Published: 2022-08-25 18:40 – Updated: 2024-11-06 16:07

Title

Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability

Summary

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation of specific values that are within a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, which would cause the affected device to reload, resulting in a DoS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-06 16:00 UTC

CWE

CWE-121

Assigner

cisco mitre root

References

2 references

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
https://security.netapp.com/advisory/ntap-2022092…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco NX-OS Software	Affected: n/a

Date Public

2022-08-24 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:24:49.938Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20220824 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20220923-0001/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-20824",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-06T16:00:02.441929Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-06T16:07:28.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco NX-OS Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2022-08-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation of specific values that are within a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, which would cause the affected device to reload, resulting in a DoS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent)."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-23T14:06:17.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20220824 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20220923-0001/"
        }
      ],
      "source": {
        "advisory": "cisco-sa-nxos-cdp-dos-ce-wWvPucC9",
        "defect": [
          [
            "CSCwb70210",
            "CSCwb74493",
            "CSCwb74494",
            "CSCwb74495",
            "CSCwb74496",
            "CSCwb74497",
            "CSCwb74498",
            "CSCwb74513"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2022-08-24T23:00:00",
          "ID": "CVE-2022-20824",
          "STATE": "PUBLIC",
          "TITLE": "Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco NX-OS Software",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation of specific values that are within a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, which would cause the affected device to reload, resulting in a DoS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent)."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "8.8",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-121"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20220824 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Denial of Service and Arbitrary Code Execution Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cdp-dos-ce-wWvPucC9"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20220923-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20220923-0001/"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-nxos-cdp-dos-ce-wWvPucC9",
          "defect": [
            [
              "CSCwb70210",
              "CSCwb74493",
              "CSCwb74494",
              "CSCwb74495",
              "CSCwb74496",
              "CSCwb74497",
              "CSCwb74498",
              "CSCwb74513"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2022-20824",
    "datePublished": "2022-08-25T18:40:48.962Z",
    "dateReserved": "2021-11-02T00:00:00.000Z",
    "dateUpdated": "2024-11-06T16:07:28.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.