Feeds

32,000 motherboards spit passwords in CLEARTEXT!

Supermicro's cure wasn't much better than the disease

Top 5 reasons to deploy VMware with Tegile

Thousands of Supermicro baseboard management controllers (BMCs) continue to spit administrator passwords in cleartext after a patch described as unsuitable was not applied by admins.

Accessing the machines could be dead simple for the tech savvy; vulnerable boxes would pop during a net or Shodan scan for port 49152. Any of the roughly 3296 exposed BMCs could be accessed with the hardware's default password. The world's worst access code – "password" – would grant access to plenty of others.

Baseboard management controllers were an element of motherboards that were the central component of Intelligent Platform Management Interfaces (IPMI) which provided remote access over UDP to sysadmins for physical state monitoring of machine fleets. Late last year, HD Moore of metasploit fame warned that Supermicro had a problem. Fixes seem not to have been very effective, leaving Carinet Security Incident Response Team security engineer Zachary Wikholm "blown away" by the Supermicro flaw.

"This means at the point of this writing, there are 31,964 systems that have their passwords available on the open market, Wikholm wrote on web host Carinet's security incident response team blog.

The bungle was noted by Tony Carothers of the SANS Internet Storm Centre which verified the flaw.

"The vulnerability involves a plaintext password file available for download simply by connecting to the specific port, 49152," Carothers said in a handlers' note.

"One of our team has tested this vulnerability, and it works like a champ, so let’s add another log to the fire and spread the good word."

Admins would need reflash their systems with a new IPMI BIOS issued by Supermicro as a fix, but this was not possible for some admins, Wikholm said. He offered an alternative work-around that he said did the trick for those unable to reflash.

The Shodan scan run by the sites proprietor John Matherly returned 9.8 million replies for HTTP GET requests from a scattering of devices running on port 49152, many of which ran embedded Linux platforms and broadcasted their kernel and hardware architectures.

Some 6.4 million of these were AT&T U-Verse web media boxes and did not spew critical data.

For the Supermicro controller subset, information on kernel versions could be matched against Shodan to help identify embedded host information.

Many of the total pool ran old Linux kernel versions: 23,380 operated on 2.4.31.x, 112,883 on 2.4.30.x kernel, and 710,046 systems maintained 2.4.19.x.

The news follows revelations last week that 207,000 BMCs exposed to the public internet could be exploited via a handful of basic configuration and protocol weaknesses.

Access to BMCs permitted attackers to compromise the host server as well as other BMCs within its management group which shared common passwords, the researchers said at the time. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
Just don't blame Bono! Apple iTunes music sales PLUMMET
Cupertino revenue hit by cheapo downloads, says report
The DRUGSTORES DON'T WORK, CVS makes IT WORSE ... for Apple Pay
Goog Wallet apparently also spurned in NFC lockdown
Cray-cray Met Office spaffs £97m on VERY AVERAGE HPC box
Only 250th most powerful in the world? Bring back Michael Fish
Microsoft brings the CLOUD that GOES ON FOREVER
Sky's the limit with unrestricted space in the cloud
'ANYTHING BUT STABLE' Netflix suffers BIG Europe-wide outage
Friday night LIVE? Nope. The only thing streaming are tears down my face
IBM, backing away from hardware? NEVER!
Don't be so sure, so-surers
Google roolz! Nest buys Revolv, KILLS new sales of home hub
Take my temperature, I'm feeling a little bit dizzy
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?
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.
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.