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nvd логотип

CVE-2019-1842

Опубликовано: 05 июн. 2019
Источник: nvd
CVSS3: 5.4
CVSS3: 5.4
CVSS2: 5.5
EPSS Низкий

Описание

A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information.

Ссылки

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:cisco:ios_xr_firmware:6.1.2.tools:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr_firmware:6.1.3.tools:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr_firmware:6.2.3.tools:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr_firmware:6.4.2.tools:*:*:*:*:*:*:*

Одно из

cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_16-slot_line_card_chassis:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_16-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_4-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_8-slot_line_card_chassis:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_8-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_fabric_card_chassis:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_line_card_chassis_\(dual\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_line_card_chassis_\(multi\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-1_multishelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-3_16-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-3_4-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-3_8-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-3_multishelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-8\/s-b_crs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-8\/scrs:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-x_16-slot_single-shelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:crs-x_multishelf_system:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_6008-8-slot_chassis:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:network_convergence_system_5508:-:*:*:*:*:*:*:*

EPSS

Процентиль: 50%
0.00267
Низкий

5.4 Medium

CVSS3

5.4 Medium

CVSS3

5.5 Medium

CVSS2

Дефекты

CWE-285
CWE-287

Связанные уязвимости

github логотип

GHSA-v5xq-942q-fwvr

CVSS3: 5.4
github
больше 3 лет назад

A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information.

fstec логотип

BDU:2019-02129

CVSS3: 5.4
fstec
больше 6 лет назад

Уязвимость механизма аутентификации службы Secure Shell (SSH) операционной системы Cisco IOS XR, позволяющая нарушителю получить доступ к уязвимому устройству

EPSS

Процентиль: 50%
0.00267
Низкий

5.4 Medium

CVSS3

5.4 Medium

CVSS3

5.5 Medium

CVSS2

Дефекты

CWE-285
CWE-287