Vulnerabilities in Layer 2 Network Security Controls Affecting Cisco Products: September 2022

On September 27, 2022, the following vulnerabilities affecting Cisco products were disclosed by Cert/CC as part of VU855201, titled L2 network security controls can be bypassed using VLAN 0 stacking and/or 802.3 headers "https://kb.cert.org/vuls/id/855201": CVE-2021-27853: Layer 2 network filteri...

多款Cisco产品安全漏洞

Cisco IOS and others are products of Cisco USA.Cisco IOS is a set of operating systems developed for its network devices.Cisco IOS XR is a set of operating systems developed for its network devices.Cisco IOS XE Software is an operating system.Cisco IOS XE Software is an operating system.Cisco IOS...

多款Cisco产品安全漏洞

Cisco NX-OS Software and others are products of Cisco Corporation.Cisco NX-OS Software is a set of data center-grade operating system software used by switches.Cisco IOS is an operating system developed for its network devices.Cisco IOS XE Software is an operating system.Cisco IOS XE Software is...

多款Cisco产品安全漏洞

Cisco NX-OS Software and others are products of Cisco Corporation.Cisco NX-OS Software is a set of data center-grade operating system software used by switches.Cisco IOS is an operating system developed for its network devices.Cisco IOS XE Software is an operating system.Cisco IOS XE Software is...

多款Cisco产品安全漏洞

Cisco IOS and others are products of Cisco Corporation.Cisco IOS is a set of operating systems developed for its network devices.Cisco IOS XE Software is an operating system.Cisco Small Business is a switch.Cisco IOS XE Software is an operating system.Cisco Small Business is a switch. Cisco IOS...

Cisco IOS and IOS XE Software IPv6 First Hop Security Denial of Service Vulnerabilities

Two vulnerabilities in the IPv6 first hop security feature of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. Cisco has released software updates that address these vulnerabilities. There are no workarounds to mitigate these...

Cisco IOS Software IPv6 First Hop Security Denial of Service Vulnerabilities (cisco-sa-20150923-fhs)

Two vulnerabilities in the IPv6 first hop security feature of Cisco IOS Software could allow an unauthenticated, remote attacker to cause an affected device to reload. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright ...

CVE-2015-6278

The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E before 3.6.3E; 3.7E before 3.7.2E; 3.9S and 3.10S before 3.10.6S; 3.11S before 3.11.4S; 3.12S and 3.13S before 3.13.3...

CVE-2015-6279

Cisco IOS/IOS XE IPv6 First Hop Security Denial of Service vulnerabilities (CVE-2015-6279, with related CVE-2015-6278) affect Cisco IOS and IOS XE releases on platforms listed in the Cisco advisory. The flaw allows remote, unauthenticated attackers to cause device reloads by sending malformed IPv...