Feeds

VMware patches man-in-the-middle vSphere vuln

Still no fix for Heartbleed, though experts say attacks improbable

Securing Web Applications Made Simple and Scalable

VMware has released an update to its vSphere Client which addresses a potential – but hard to target – man-in-the-middle vulnerability for the virtualization tool.

The company said that users running vSphere Client 4.0, 4.1, 5.0, and 5.1 for Windows were vulnerable to a flaw that allows the client to download and install untrusted updates. Were an attacker to exploit the flaw, VMware said that users could be subject to remote code execution attacks via a malicious link or redirect.

Systems running vSphere Client 5.5 are not vulnerable to the flaw.

Steve Pate, chief architect at virtualization security firm HyTrust, told The Reg said that while administrators should always make sure users are running fully patched software, the risk of attacks targeting this vulnerability in the wild are likely to be low.

Pate told us that in the case of the vSphere Client vulnerability, an attacker would have to get in the middle of an update chain that runs when the vCenter Server platform is updated and no longer matches the end user's version of the vSphere client, at which point the vulnerable component is launched.

"For most companies and datacenters, the chance of actually having an attack is extremely slim," Pate explained.

"If it could be exploited, it would be an extremely sophisticated attack and not very easy to do."

The update comes just two days after VMware told users that 28 of its products contain versions of OpenSSL subject to the infamous Heartbleed security flaw.

The company has yet to roll out a fix for that flaw as it releases the patch for the vSphere Client vulnerability. Still, administrators need not fret much over their VMware products, Pate said.

He noted that as few VMware implementations directly face the public web, the risk posed by Heartbleed will be lower than that of platforms and applications that are more readily accessible to potential attackers. ®

The smart choice: opportunity from uncertainty

More from The Register

next story
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
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
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
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.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
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.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.