Описание
A vulnerability in the MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic through a Layer 3 interface of an affected device. The vulnerability is due to a logic error in the affected software. An attacker could exploit this vulnerability by connecting to and passing traffic through a Layer 3 interface of an affected device, if the interface is configured for MACsec MKA using EAP-TLS and is running in access-session closed mode. A successful exploit could allow the attacker to bypass 802.1x network access controls and gain access to the network.
Ссылки
- Third Party AdvisoryVDB Entry
- Vendor Advisory
- Third Party AdvisoryVDB Entry
- Vendor Advisory
Уязвимые конфигурации
Одно из
EPSS
8.1 High
CVSS3
4.8 Medium
CVSS2
Дефекты
Связанные уязвимости
A vulnerability in the MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic through a Layer 3 interface of an affected device. The vulnerability is due to a logic error in the affected software. An attacker could exploit this vulnerability by connecting to and passing traffic through a Layer 3 interface of an affected device, if the interface is configured for MACsec MKA using EAP-TLS and is running in access-session closed mode. A successful exploit could allow the attacker to bypass 802.1x network access controls and gain access to the network.
Уязвимость реализации протокола MACsec Key Agreement операционной системы Cisco IOS XE, вызванная ошибками в контроле доступа, позволяющая науршителю получить доступ к сети
EPSS
8.1 High
CVSS3
4.8 Medium
CVSS2