Cisco warns of Catalyst bug

4000, 6000 and 6500 switches vulnerable to hackers

Ian Lynch

Cisco has warned users of a bug in version 7.5(1) of its software that leaves its popular Catalyst 4000, 6000 and 6500 switches vulnerable to hackers.

The weakness allows hackers to bypass password protection and alter the configuration of the switches.

Advertisement

Strictly limiting telnet and/or secure shell access to the device will prevent the initial connection required to exploit this vulnerability, Cisco said.

Upgrades are available free of charge, either direct from Cisco via its website or the vendor's channel, depending on the user's support contract.

Cisco customers without support contracts should email Cisco's technical advice centre at tac@cisco.com.

The vendor said a customer had reported the weakness, and that it knew of no malicious activity relating to it.

  • Have your say
  • Send to a friend
  • Print
  • Digg
  • Reddit
  • Share

Tags:

Do you agree?

Related whitepapers

Related jobs

Most watched

eu flag

V3.co.uk weekly debrief, 6 Nov 09

This week, Europe decides what to do with illegal file sharers

Intel unveils its micro server platform

Small-enclosure systems take aim at hosting market

IT white papers

Search white papers

Top categories

Poll

Impact of Information Overload poll

Impact of Information Overload poll

What is the biggest problem your firm faces as a result of the data explosion?

View poll results

Advertisement

Advertisement

Newsletter signup

Sign up for our range of FREE newsletters:

Existing User

Newsletter user login:

Enter email address to edit your newsletter preferences

Job of the week

Search thousands of IT jobs :

Search thousands of IT jobs:

Advanced search

Hiring now on ComputingCareers:

Related IT jobs

Search thousands of IT jobs :

Search thousands of IT jobs:

Advanced search

Spotlight

Piracy, privacy and processing power set to be hot topics for V3.co.uk Summit

Have you got a burning desire to quiz experts from...

iPhone

World's first iPhone virus surfaces

Images of 80s icon Rick Astley spell trouble

Airvana HubBub

Airvana debuts 3G femtocell for offices

HubBub improves indoor network coverage for businesses

shopping key

E-commerce on brink of SaaS revolution

Figleaves founder argues platform-as-a-service vendor will emerge to shake up...

Primary Navigation