PHP 'zero-day' hole found

Powered by SC Magazine
 

Bugged patch fails to fix flaw.

A dangerous vulnerability has been discovered in PHP-CGI which grants attackers remote code execution and the ability to steal source code.

The hole was publicly disclosed reportedly in error to Reddit following a patch issued by PHP Group, but the fix was later discovered by researcher Steffan Esser to have failed.

Researchers from Dutch security firm De Eindbazen discovered the vulnerability during a capture-the-flag event at the Nullcon event last year.

 

 

A workaround fix on which the failed patches (PHP versions 5.3.12 and 5.4.2) were based was posted to De Eindbbazen's web site which included technical details on the flaw.

Researchers warned that users not follow “homebrew” fixes posted in online comments about the flaw.

The flaw affected classic CGI servers and was centred on a query string that issued a “-s” command argument pushed to PHP. It had existed since 2004, researchers said.

The research firm recommended users use a wrapper binary around the php-cgi binary until a permanent fix is released.

Copyright © SC Magazine, Australia


PHP 'zero-day' hole found
 
 
 
Top Stories
Beyond ACORN: Cracking the infosec skills nut
[Blog post] Could the Government's cybercrime focus be a catalyst for change?
 
The iTnews Benchmark Awards
Meet the best of the best.
 
Telstra hands over copper, HFC in new $11bn NBN deal
Value of 2011 deal remains intact.
 
 
Sign up to receive iTnews email bulletins
   FOLLOW US...
Latest Comments
Polls
Who do you trust most to protect your private data?







   |   View results
Your bank
  39%
 
Your insurance company
  3%
 
A technology company (Google, Facebook et al)
  8%
 
Your telco, ISP or utility
  7%
 
A retailer (Coles, Woolworths et al)
  2%
 
A Federal Government agency (ATO, Centrelink etc)
  20%
 
An Australian law enforcement agency (AFP, ASIO et al)
  14%
 
A State Government agency (Health dept, etc)
  6%
TOTAL VOTES: 1792

Vote
Do you support the abolition of the Office of the Information Commissioner?