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New Attack Hijacks DNS Traffic From 300,000 Routers 105

nk497 writes "Florida-based security firm Team Cymru said it was examining a widespread compromise"of 300,000 consumer and small office/home office (SOHO) routers in Europe and Asia. The DNS server settings were changed to a pair of IP addresses, which correspond to Dutch machines that are registered to a company that lists its address in central London. The attack highlights the flaws in router firmware, the researchers said. 'It's not new as an issue to the InfoSec community but this is one of the biggest we've seen recently as it's quite insidious,' Cymru's Steve Santorelli said, adding the hack could let the attackers conduct man in the middle attacks, impersonating your bank, for example."
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New Attack Hijacks DNS Traffic From 300,000 Routers

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  • by Todd Knarr ( 15451 ) on Tuesday March 04, 2014 @01:53AM (#46394265) Homepage

    Some had the management UI accessible from the Internet, letting botnets probe routers and try common passwords directly (consumer routers have poor intrusion-reporting capabilities so the attempts are likely to go unnoticed).The majority, though, had URLs that can be accessed to change settings without requiring authentication. So the bad guys set up a site that exploits cross-site scripting bugs to cause your browser to access those URLs on the router when visiting the web site. That let them change the DNS servers without needing to crack the password, and the technique works no matter how strong a password you've set. The only way to avoid it's to avoid any router whose firmware's vulnerable. If you've got a vulnerable router that's supported by DD-WRT or OpenWRT, flashing the router with them's an option. The worst case is you brick the router and have to buy a new one, which is what you'd have to do if you didn't re-flash it.

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