Feeds

Rackspace patches Windows Updater vuln

Get patching lest this remote execution problem bite you somewhere cloudy

Secure remote control for conventional and virtual desktops

Rackspace has patched an arbitrary code execution bug in its Windows environment, following an advisory from CloudPassage.

CloudPassage discovered that the Rackspace Windows Agent and Updater allowed unauthenticated users to upload a modified version of the agent binary to Rackspace Cloud Server instances. The modified code would then be treated as a normal update: when the service restarts after the update, an attacker could then execute arbitrary code.

As explained by CloudPassage, the Rackspace-written Windows Agent and Updater handle boot config for Windows guests running on the Xen hypervisor, running as services under the LocalSystem account.

Pre-1.2.6.0 Updater versions allowed unsigned updates using a crafted .NET call to Port 1984 (El Reg presumes the port number is pure coincidence), which sends a .NET serialisable object with a URL and MD5 checksum to the target. The target system would then download a zipfile, check it against the checksum, extract it into the program folder of the Agent service, and restart the service. As its proof-of-concept, CloudPassage used the und3auth tool to put a backdoor into the Agent binary.

The fixed Updater no longer listens on Port 1984, and uses IPC with XenStore. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Knock Knock tool makes a joke of Mac AV
Yes, we know Macs 'don't get viruses', but when they do this code'll spot 'em
Feds seek potential 'second Snowden' gov doc leaker – report
Hang on, Ed wasn't here when we compiled THIS document
DRUPAL-OPCALYPSE! Devs say best assume your CMS is owned
SQLi hole was hit hard, fast, and before most admins knew it needed patching
Why weasel words might not work for Whisper
CEO suspends editor but privacy questions remain
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
BlackEnergy crimeware coursing through US control systems
US CERT says three flavours of control kit are under attack
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
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.
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?
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
How to simplify SSL certificate management
Simple steps to take control of SSL certificates across the enterprise, and recommendations centralizing certificate management throughout their lifecycle.