CVE-2022-20849

Опубликовано: 15 нояб. 2024

Источник: nvd

CVSS3: 6.1

EPSS Низкий

Описание

A vulnerability in the Broadband Network Gateway PPP over Ethernet (PPPoE) feature of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the PPPoE process to continually crash. This vulnerability exists because the PPPoE feature does not properly handle an error condition within a specific crafted packet sequence. An attacker could exploit this vulnerability by sending a sequence of specific PPPoE packets from controlled customer premises equipment (CPE). A successful exploit could allow the attacker to cause the PPPoE process to continually restart, resulting in a denial of service condition (DoS).Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the September 2022 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see .

Ссылки

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-bng-Gmg5Gxt
Vendor Advisory

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:cisco:ios_xr:6.5.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.5.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.5.15:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.6.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.6.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.6.3:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.6.4:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.7.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.7.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.7.3:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.7.35:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.8.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.8.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:6.9.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.0.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.0.90:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.1.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.1.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.1.3:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.1.15:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.1.25:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.2.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.2.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.3.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.3.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.3.3:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.3.4:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.4.1:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.4.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios_xr:7.5.1:*:*:*:*:*:*:*

Одно из

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_9902:-:*:*:*:*:*:*:*

cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:*

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:ios_xrv_9000:-:*:*:*:*:*:*:*

EPSS

Процентиль: 16%

0.00051

Низкий

6.1 Medium

CVSS3

Дефекты

CWE-391

Связанные уязвимости

GHSA-r2p4-pwjj-hqr4

CVSS3: 6.1

github

около 1 года назад

A vulnerability in the Broadband Network Gateway PPP over Ethernet (PPPoE) feature of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the PPPoE process to continually crash. This vulnerability exists because the PPPoE feature does not properly handle an error condition within a specific crafted packet sequence. An attacker could exploit this vulnerability by sending a sequence of specific PPPoE packets from controlled customer premises equipment (CPE). A successful exploit could allow the attacker to cause the PPPoE process to continually restart, resulting in a denial of service condition (DoS).Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the September 2022 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see .

BDU:2022-06326

CVSS3: 6.1

fstec

больше 3 лет назад

Уязвимость функции широкополосного сетевого шлюза PPP over Ethernet (PPPoE) операционной системы Cisco IOS XR, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 16%

0.00051

Низкий

6.1 Medium

CVSS3

Дефекты

CWE-391