Feeds

IE scripting flaw uncovered

Full disclosure

  • alert
  • submit to reddit

The Essential Guide to IT Transformation

Security researchers yesterday released details of a cross domain scripting flaw in Internet Explorer ahead of a fix by Microsoft.

The flaw leaves applications that use WebBrowser control, including Microsoft IE, Outlook and Outlook Express (when run outside restricted zones), vulnerable to a variety of attacks, researchers from security consultancy PivX say.

Possible exploits include elevating privileges, arbitrary command execution, local file reading and stealing arbitrary cookies.

The vulnerability arises because the object property of embedded WebBrowser controls, which is used to embed external objects inside a page, is not subject to the cross domain security checks which embedded HTML documents ordinarily go through. It is explained in greater detail here

The upshot is that it's possible for crackers to construct exploits which escape any sandboxing and security zone restrictions. Such objects can be the WebBrowser control and other ActiveX controls, images or applets.

PivX have put together a series of proof of concept exploits to back up their warning. The vulnerability was notified to Microsoft on June 25 but Redmond has yet to develop a fix

To guard against the vulnerability, PivX suggests that administrators should disable ActiveX scripting until a patch is available.

The release of information about vulnerabilities has been a point of contention between independent security vendors and vendors, most notably Microsoft, recently. Research by the Hurwitz Group, released late last month, suggests users would like to see information disclosed full disclosure of security information.

PivX said it had decided to release information on this vulnerability following our report on this research.

According to PivX, Internet Explorer is subject to 19 unpatched security holes. ®

Build a business case: developing custom apps

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
Multipath TCP speeds up the internet so much that security breaks
Black Hat research says proposed protocol will bork network probes, flummox firewalls
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Israel's Iron Dome missile tech stolen by Chinese hackers
Corporate raiders Comment Crew fingered for attacks
Tor attack nodes RIPPED MASKS off users for 6 MONTHS
Traffic confirmation attack bared users' privates - but to whom?
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
prev story

Whitepapers

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.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.