Feeds

Latest CodeRed variant lacks built in obsolescence

Same old tricks with moderate-to-low risk worm

  • alert
  • submit to reddit

Providing a secure and efficient Helpdesk

Eighteen months after Code Red wormed its way through insecure Microsoft IIS Web Servers, yet another variant has found its way onto the Internet.

CodeRed-F most closely resembles Code Red II, differing by only two bytes. This change means CodeRed-F is liable to spread indefinetly unlike CodeRed II, which was programmed to stop spreading at the end of 2002. An advisory by Finnish AV specialist F-Secure explains this point in more detail.

The original CodeRed had a payload that causes a Denial of Service attack on the White House Web server. CodeRed-F (like CodeRed II) has a different payload that allows the hacker to have full remote access to the Web server.

All the CodeRed worms use a "buffer overflow" exploit to propagate through vulnerable Microsoft IIS Web servers.

Admins running IIS are strongly urged to apply a cummulative patch to guard against this, and other similar risks.

AV vendors rate CodeRed-F as only a moderate to low-risk worm, largely because the number of vulnerable IIS Web Servers is much reduced since the original outbreak of CodeRed and Nimda (which also spread using the same exploit).

Advisories on CodeRed-F from McAfee, Symantec and Trend Micro provide further information. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
SMASH the Bash bug! Apple and Red Hat scramble for patch batches
'Applying multiple security updates is extremely difficult'
Shellshock: 'Larger scale attack' on its way, warn securo-bods
Not just web servers under threat - though TENS of THOUSANDS have been hit
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
Hackers thrash Bash Shellshock bug: World races to cover hole
Update your gear now to avoid early attacks hitting the web
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Who.is does the Harlem Shake
Blame it on LOLing XSS terroristas
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
prev story

Whitepapers

A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.