Feeds

MS squashes 0day bug in July Patch Tuesday

Patches under-attack XML Core Services flaw in Flame-proof update

Security for virtualized datacentres

Microsoft has patched an under-attack zero-day vulnerability in XML Core Services as part of the July edition of Patch Tuesday.

The critical security update (MS12-043) addresses a security flaw that has made its way into the Blackhole Exploit toolkit since its discovery last month. A further two critical updates cover a cumulative security update for Internet Explorer and a remote code execution flaw in MS Data Access Components (a part of Windows), respectively. The six other bulletin issued on Tuesday cover lesser security flaws.

Andrew Storms, director of security operations for nCircle, noted that only under-attack versions of XML Core Services have been patched, as yet.

“The most important patch this month is undoubtedly the XML core services bug," Storms commented. "Microsoft issued an advisory for this bug in early June and we've already seen the exploit in a number of exploit toolkits and attacks have been reported in the wild."

"[The] XML version 5 patch for the bug isn't shipping today. The fix for this version is probably not ready yet, so Microsoft decided to deliver the other patches. So far, all the attacks in the wild utilize XML version 3, so this release, even though not totally complete, seems like a no-brainer."

Storms added that the IE patch is significant because it represents a step up in frequency for browser security updates from Microsoft.

"Usually, Microsoft sticks to an extensive two-month test cycle for Internet Explorer, so that's why we've only seen them every other month," he said.

"[An] MSRC post says that additional resources have been added to IE testing to reduce the test period. It's good to know that Microsoft can deliver IE patches faster, but IT security teams are probably less than thrilled, since they are going to see a lot more IE patches, including the one released today.”

Microsoft's summary of its security bulletins is here. The Internet Storm Centre has published an easier to understand overview here.

The July edition of Patch Tuesday marks the first time Microsoft has made use of an update mechanism that it hardened in response to an investigation into the Flame malware, a cyber-espionage tool that abused certain aspects of Redmond's update mechanism in order to spread. The investigation into Flame also resulted in Microsoft's decision to revoke 28 digital certificates, as a precaution.

In an advisory, Microsoft explains that the revoked certificates were vulnerable to spoofing attacks, hence the decision to replace them with something stronger. "Upon a routine review, we are placing these certificates in the Untrusted Certificate Store, and replacing them with new certificate authorities that meet our high standard of public-key infrastructure (PKI) management. We are unaware of any misuse of the certificate authorities, but are taking pre-emptive action to protect customers. This issue affects all supported releases of Microsoft Windows." ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
NASTY SSL 3.0 vuln to be revealed soon – sources (Update: It's POODLE)
So nasty no one's even whispering until patch is out
Russian hackers exploit 'Sandworm' bug 'to spy on NATO, EU PCs'
Fix imminent from Microsoft for Vista, Server 2008, other stuff
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
Forget passwords, let's use SELFIES, says Obama's cyber tsar
Michael Daniel wants to kill passwords dead
FBI boss: We don't want a backdoor, we want the front door to phones
Claims it's what the Founding Fathers would have wanted – catching killers and pedos
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
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?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.