Vulnerability CVE-2005-4440


Published: 2005-12-20   Modified: 2012-02-12

Description:
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."

Type:

CWE-Other

Vendor: Vlan protocol
Product: Vlan protocol 
Version: 802.1q;

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None

 References:
http://lists.grok.org.uk/pipermail/full-disclosure/2005-December/040333.html
http://www.securityfocus.com/archive/1/419831/100/0/threaded
http://www.securityfocus.com/archive/1/419834/100/0/threaded

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