NVD Vulnerability Detail
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CVE-2005-4440
Summary

The 802.1q VLAN protocol allows remote attackers to bypass network segmentation and spoof VLAN traffic via a message with two 802.1q tags, which causes the second tag to be redirected from a downstream switch after the first tag has been stripped, as demonstrated by Yersinia, aka "double-tagging VLAN jumping attack."

Publication Date Dec. 21, 2005, 11:03 a.m.
Registration Date Jan. 29, 2021, 5:59 p.m.
Last Update Oct. 20, 2018, 12:40 a.m.
CVSS2.0 : MEDIUM
Score 5.0
Vector AV:N/AC:L/Au:N/C:N/I:P/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃前の認証要否(Au) 不要
機密性への影響(C) なし
完全性への影響(I)
可用性への影響(A) なし
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:vlan_protocol:vlan_protocol:802.1q:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List