Feeds

Firefox popup exploit allows file snooping

Pop goes the weasel

Internet Security Threat Report 2014

A vulnerability in Firefox's popup blocker software creates a means to read files from affected systems, security researchers warn.

The flaw, coupled with some tricksy coding, establishes a mechanism for hackers to read user-accessible files on vulnerable system, thereby creating a means to swipe sensitive information. Firefox version 1.5.0.9 is known to be exposed to the exploit. Other versions of the popular web surfing package might also be affected.

The vulnerability was discovered by security researcher Michal Zalewski who said the exploit relies in part on the fact that normal URL permission checks, which would stop remote sites from accessing a user's filespace, are bypassed when a user chooses to manually allow a blocked popup.

For the attack to succeed hackers would have to place a predictably named file with exploit code on the target system, which sounds difficult but is far from impossible as a technical article on the flaw by Securiteam explains. ®

Intelligent flash storage arrays

More from The Register

next story
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
Oi, Europe! Tell US feds to GTFO of our servers, say Microsoft and pals
By writing a really angry letter about how it's harming our cloud business, ta
HACKERS can DELETE SURVEILLANCE DVRS remotely – report
Hikvision devices wide open to hacking, claim securobods
prev story

Whitepapers

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.
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.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
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?
Business security measures using SSL
Examines the major types of threats to information security that businesses face today and the techniques for mitigating those threats.