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CVE-2020-3524

Опубликовано: 24 сент. 2020
Источник: nvd
CVSS3: 6.4
CVSS3: 6.8
CVSS2: 6.9
EPSS Низкий

Описание

A vulnerability in the Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, physical attacker to break the chain of trust and load a compromised software image on an affected device. The vulnerability is due to the presence of a debugging configuration option in the affected software. An attacker could exploit this vulnerability by connecting to an affected device through the console, forcing the device into ROMMON mode, and writing a malicious pattern using that specific option on the device. A successful exploit could allow the attacker to break the chain of trust and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

Уязвимые конфигурации

Конфигурация 1

Одновременно

cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*
Версия до 16.2\(1r\) (исключая)

Одно из

cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*
Конфигурация 2

Одновременно

cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*
Версия до 15.6\(18r\) (исключая)

Одно из

cpe:2.3:h:cisco:asr-920-10sz-pd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-12cz-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-12cz-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-12sz-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-12sz-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-20sz-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-24sz-im:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-24sz-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-24tz-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-4sz-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr-920-4sz-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_920u-12sz-im:-:*:*:*:*:*:*:*
Конфигурация 3

Одновременно

cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*
Версия до 16.2\(1r\) (исключая)

Одно из

cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:*
Конфигурация 4

Одновременно

cpe:2.3:o:cisco:ios_xe_rom_monitor:*:*:*:*:*:*:*:*
Версия до 16.4\(1r\)s (исключая)
cpe:2.3:h:cisco:cbr8:-:*:*:*:*:*:*:*

EPSS

Процентиль: 22%
0.00072
Низкий

6.4 Medium

CVSS3

6.8 Medium

CVSS3

6.9 Medium

CVSS2

Дефекты

CWE-284
CWE-862

Связанные уязвимости

CVSS3: 6.8
github
больше 3 лет назад

A vulnerability in the Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, physical attacker to break the chain of trust and load a compromised software image on an affected device. The vulnerability is due to the presence of a debugging configuration option in the affected software. An attacker could exploit this vulnerability by connecting to an affected device through the console, forcing the device into ROMMON mode, and writing a malicious pattern using that specific option on the device. A successful exploit could allow the attacker to break the chain of trust and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

CVSS3: 6.4
fstec
больше 5 лет назад

Уязвимость режима монитора ROM (ROMMON) операционной системы Cisco IOS XE для маршрутизаторов Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers и Cisco cBR-8 Converged Broadband Routers, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информациии

EPSS

Процентиль: 22%
0.00072
Низкий

6.4 Medium

CVSS3

6.8 Medium

CVSS3

6.9 Medium

CVSS2

Дефекты

CWE-284
CWE-862