Описание
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2021-27853
- https://blog.champtar.fr/VLAN0_LLC_SNAP
- https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08
- https://kb.cert.org/vuls/id/855201
- https://standards.ieee.org/ieee/802.1Q/10323
- https://standards.ieee.org/ieee/802.2/1048
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-VU855201-J3z8CKTX
- https://www.kb.cert.org/vuls/id/855201
Связанные уязвимости
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers.
Layer 2 network filtering capabilities such as IPv6 RA guard or ARP in ...
Уязвимость реализации протокола инкапсуляции Ethernet, связанная с возможностью объединения заголовков, позволяющая нарушителю вызвать отказ в обслуживании или реализовать атаку «человек посередине» (MITM)