DeutschShown in its original language — a full translation is planned for a future version.
Layer 2 Netzwerksicherheitskontrollen: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen
view advisory published 2022-09-27
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Layer 2 Netzwerksicherheitskontrollen in mehreren Produkten ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
01
describes (4)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-27862US | medium4.7 | — | ||
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion (and optionally VLAN0… | ||||
| CVE-2021-27861US | medium4.7 | — | ||
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length (and optionally VLAN0 headers) | ||||
| CVE-2021-27854US | medium4.7 | — | ||
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and… | ||||
| CVE-2021-27853US | medium4.7 | — | ||
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. | ||||
02
references
External citations — patches, advisories, analysis.
- ExtremeNetworks Security Advisory SA-2022-026 vom 2022-10-20external
- ExtremeNetworks Security Advisory SA-2022-028 vom 2022-10-20external
- Lenovo Security Advisory LEN-68035 vom 2022-10-11external
- Cisco Security Advisoryexternal
- WID-SEC-W-2022-1551 - CSAF Versionself
- WID-SEC-2022-1551 - Portal Versionself
- Arista Security Advisoryexternal
- Arista Security Advisoryexternal
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