Feeds

Win2K becomes a spam relay

SMTP authentication out of control

  • alert
  • submit to reddit

Build a business case: developing custom apps

A flaw in the Win-2K SMTP (Simple Mail Transfer Protocol) authentication scheme allows unauthorized users to access the system using bogus credentials and bounce spam and death threats off unwitting users' machines with impunity.

"An attacker who exploited the vulnerability could gain user-level privileges on the SMTP service, thereby enabling the attacker to use the service but not to administer it. The most likely purpose in exploiting the vulnerability would be to perform mail relaying via the server," an MS security bulletin explains.

SMTP service is installed by default on Win2K server, and can be enabled by choice on Win-2K Pro. The vulnerability affects only stand-alone machines. W2K machines configured as domain members are not affected. The SMTP services in NT 4.0, Exchange 5.5 and Exchange 2K are also not affected.

Technical details are quite sketchy at the moment, but MS says they will post additional information by way of Knowledge Base article Q302755 within 24 hours. It was not available at press time. ®

Related Link

The W2K patch

Secure remote control for conventional and virtual desktops

More from The Register

next story
Why has the web gone to hell? Market chaos and HUMAN NATURE
Tim Berners-Lee isn't happy, but we should be
Microsoft boots 1,500 dodgy apps from the Windows Store
DEVELOPERS! DEVELOPERS! DEVELOPERS! Naughty, misleading developers!
'Stop dissing Google or quit': OK, I quit, says Code Club co-founder
And now a message from our sponsors: 'STFU or else'
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
Linux turns 23 and Linus Torvalds celebrates as only he can
No, not with swearing, but by controlling the release cycle
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
This is how I set about making a fortune with my own startup
Would you leave your well-paid job to chase your dream?
prev story

Whitepapers

Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Backing up distributed data
Eliminating the redundant use of bandwidth and storage capacity and application consolidation in the modern data center.
The essential guide to IT transformation
ServiceNow discusses three IT transformations that can help CIOs automate IT services to transform IT and the enterprise
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.