Feeds

Heartbleed mega-bug clean up shrinks Tor network by an eighth

And that's before they look at all the nodes and what version of OpenSSL they're running

Protecting users from Firesheep and other Sidejacking attacks with SSL

Tor, the sometimes-controversial internet-traffic-anonymising service, is bleeding thanks to the Heartbleed flaw.

Roger Dingledine – one of Tor's three original co-developers and now the project's leader – has posted to the Tor relays mailing lists with his assessment that “we'll lose about 12 per cent of the exit capacity and 12 per cent of the guard capacity,” if systems vulnerable to the security bug are booted out.

Some Tor nodes are still running broken versions of OpenSSL, which can be silently exploited to leak sensitive data such as cryptographic keys. Tor's overlords, sensibly, appear to be looking at the service's participants to check whether they are likely to Heartbleed out if attacked. As they find problems, they exclude the nodes from the anonymizing network.

“I/we should add to this list as we discover other relays that come online with vulnerable openssl versions,” Dingledine writes. He also adds that there are plenty of places for Tor's operators to look, as to date they have only considered “... the relays with Guard and/or Exit flags, so we should add the other 1000+ at some point soon.”

Tor's overseers are doubtless not alone in having a lot of Heartbleed-related work to do. That they have that work to do, and that Tor is degraded by the vulnerability, is more evidence of the very significant impact the problem is causing. ®

The next step in data security

More from The Register

next story
Israeli spies rebel over mass-snooping on innocent Palestinians
'Disciplinary treatment will be sharp and clear' vow spy-chiefs
Infosec geniuses hack a Canon PRINTER and install DOOM
Internet of Stuff securo-cockups strike yet again
THREE QUARTERS of Android mobes open to web page spy bug
Metasploit module gobbles KitKat SOP slop
'Speargun' program is fantasy, says cable operator
We just might notice if you cut our cables
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.