USB stick-sploit makes anyone a Windows admin

Powered by SC Magazine
 

Windows 7 affected.

Researchers have detailed a current vulnerability in Windows 7 that allows school kids, university students and other local users to side-step security controls and gain administrator access.

The low-severity NULL pointer dereference bug focused on the "rather complex and still largely unexplored" NTFS file system which was exploited via a crafted USB volume.

Gynvael Coldwind found the vulnerability while Mateusz "j00ru" Jurczyk wrote the exploit.

Together, they said it served as an interesting case study of Windows kernel exploitation using novel techniques to achieve reliable code execution with escalated privileges.

"Windows actively uses so many interesting system structures (in)directly controlled from user-mode that there is always one that fits properly, even for very complicated types of memory corruption conditions," the researchers wrote.

"...The only scenario in which it might be a problem security-wise is a local computer shared between multiple users with restricted privileges and thus has been rated as low-severity by both us and MSRC (Microsoft Security Response Center)."

They said the exploit might work on earlier Windows operating systems but did not reproduce on Windows 8.

Microsoft was reportedly investigating a potential fix for stability purposes.

Technical details on the bug and exploit were available on both Coldwind's and Jurczyk's blogs.

Copyright © SC Magazine, Australia


USB stick-sploit makes anyone a Windows admin
 
 
 
Top Stories
Business-focused Windows 10 brings back the Start menu
Microsoft skips 9 for the "greatest enterprise platform ever".
 
Feeling Shellshocked?
Stay up to date with patching for the Bash bug.
 
Amazon forced to reboot EC2 to patch Xen bug
Rolling restarts over next week.
 
 
Sign up to receive iTnews email bulletins
   FOLLOW US...
Latest articles on BIT Latest Articles from BIT
Constantly rushing to the printer to stop other people seeing your printouts?
Sep 24, 2014
Lexmark's latest family of small-business printers include a feature that lets you stop anyone ...
This 4G smartphone costs $219
Sep 3, 2014
It's possible to spend a lot less on a smartphone if you're prepared to go with a brand you ...
Looking for storage? Seagate has five new small business NAS devices
Aug 22, 2014
Seagate has announced a new portfolio of Networked Attached Storage (NAS) solutions specifically ...
Run a small business in western Sydney?
Aug 15, 2014
This event might be of interest if you're looking to meet other people with a similar interest ...
Buying a tablet? Microsoft's Surface Pro 3 goes on sale this month
Aug 8, 2014
Microsoft has announced its Surface Pro 3 will go on sale in Australia on 28 August from ...
Latest Comments
Polls
Which is the most prevalent cyber attack method your organisation faces?




   |   View results
Phishing and social engineering
  66%
 
Advanced persistent threats
  4%
 
Unpatched or unsupported software vulnerabilities
  11%
 
Denial of service attacks
  6%
 
Insider threats
  12%
TOTAL VOTES: 1372

Vote