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Cisco IOS VTP Denial of Service Vulnerability
Secunia Advisory: SA23892
Release Date: 2007-01-30
Popularity: 13,185 views

Critical:
Less critical
Impact: DoS
Where: From local network
Solution Status: Unpatched

OS:Cisco IOS 12.x
Cisco IOS R12.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
David Barroso Berrueta and Alfredo Andres Omella have reported a vulnerability in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an unspecified error when handling certain malformed VLAN Trunking Protocol (VTP) packets. This can be exploited to cause a device to reload by sending a specially crafted VTP packet.

Successful exploitation requires knowledge of the VTP domain name and the port that is configured for trunking.

The vulnerability is reported in the following devices:
* Cisco 2900XL Series Switches
* Cisco 2950 Series Switches
* Cisco 2955 Series Switches
* Cisco 3500XL Series Switches
* Cisco 3550 Series Switches
* Cisco 3570 Series Switches

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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