Feeds

The Cisco Intrusion Undetection System

Apply Service Pack now

  • alert
  • submit to reddit

Seven Steps to Software Security

Cisco has issued an alert for its Intrusion Detection System (IDS), one day after launching an enhanced security portfolio.

IDS inspects network traffic and raises alerts for suspect traffic, such as that generated by the Code Red worm. However, it can be fooled by hackers who encode packets using " %u", a non-standard form for coding similar to Unicode. Suspect packets made using this method of coding are flagged straight through by Cisco's IDS.

A patch for the Intrusion Detection System Module on Catalyst 6000 LAN switches is in the works.

Paul Rogers, network security analyst at MIS Corporate Defence, said the flaw is not particularly serious as it is very rare for a Web server to be protected soleley by an IDS system.

In any case, companies should update their Web server software to protect themselves against Code Red; this tackles the problem at source.

The IDS alert was published the day afterCisco trumpeted improvements to its security products including a firewall for small business and, you've guessed it, enhancements to Cisco IDS. ®

External links

Cisco Secure Intrusion Detection System Signature Obfuscation Vulnerability

Related stories

Code Red and the Cisco Side Effect
Security software crashes Cisco kit
SSH hits the fan for Cisco on security
Multiple flaws in Cisco router software exposed
Cisco 600 routers offer cracker fun

Mobile application security vulnerability report

More from The Register

next story
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
NEW, SINISTER web tracking tech fingerprints your computer by making it draw
Have you been on YouPorn lately, perhaps? White House website?
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
BMW's ConnectedDrive falls over, bosses blame upgrade snafu
Traffic flows up 20% as motorway middle lanes miraculously unclog
Attackers raid SWISS BANKS with DNS and malware bombs
'Retefe' trojan uses clever spin on old attacks to grant total control of bank accounts
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.