Security

High-end router flinger DrayTek admits to zero day in bunch of Vigor kit

'It may be possible for an attacker to intercept your router'

By Kat Hall

34 SHARE

Taiwanese network kit maker DrayTek has 'fessed up to a vulnerability in a large number of its routers which could allow miscreants to hijack internet traffic or steal personal data.

The flaw means attackers could remotely alter DNS settings on 28 Vigor model routers. DrayTek has released a series of firmware updates addressing the issue.

Users have complained about the problem for the last week on the AbuseIPDB forum. One noted the zero-day attack had infiltrated their servers, CRM and workstations.

"We now cannot log in as it is obvious this zero-day attack has changed our passwords including our VPN accounts [that] our remote users use to log in to the environment."

DrayTek routers are considered high end in the UK – retailing at around £200, more than twice the price of garden-variety alternatives – and are mostly used by businesses. In 2015, BT's Openreach accredited DrayTek for use of its very-high-bit-rate digital subscriber line 2 (VDSL2) fibre-to-the-cabinet products.

One business customer, who discovered his router was open to the vulnerability, told El Reg: "DrayTek routers are really expensive compared with other makes, they have an awful lot of features on them and this is the first known exploit I've come across."

In a statement, the company said:

We have become aware of security reports with DrayTek routers related to the security of web administration when managing DrayTek routers.

In some circumstances, it may be possible for an attacker to intercept or create an administration session and change settings on your router.

The reports appear to show that DNS settings are being altered. Specific improvements have been identified as necessary to combat this and we are in the process of producing and issuing new firmware. You should install that as soon as possible.

Until you have the new firmware installed, you should check your router's DNS settings on your router and correct them if changed (or restore from a config backup).

A survey by Broadband Genie recently found the vast majority of punters are potentially leaving themselves exposed by failing to change the password and security setting on their routers. ®

Sign up to our NewsletterGet IT in your inbox daily

34 Comments

More from The Register

Did you hear the one about Cisco routers using strcpy insecurely for login authentication? Makes you go AAAAA-AAAAAAArrg *segfault*

RV110W, RV130W, RV215W need patching to close remote hijacking bug

Magic million: That's how many Cisco routers can now run SD-WAN

Viptela vManage comes to boxen running IOS XE

Cisco bulks up routers for carriers struggling with CDN traffic

IOS XR gets an SDN injection to help things out, too

Google: All your leaked passwords are belong to us – here's a Chrome extension to find them

And I'm OK with this, says chief of HaveIBeenPwned

FBI to World+Dog: Please, try turning it off and turning it back on

Feds trying to catalogue VPNFilter infections

Cisco snaps up Brit networking software bods Ensoft

From main customer to owner

Dr Symantec offers quick and painless checkup for VPNFilter menace on routers

Traffic-fiddling malware may have met its match

100,000 home routers recruited to spread Brazilian hacking scam

GhostDNS in the machine

FBI agents take aim at VPNFilter botnet, point finger at Russia, yell 'national security threat'

Feds warn admins malware is rather tough to destroy

Ignore that FBI. We're the real FBI, says the FBI that's totally the FBI

Don't open that malware mail from the Feds that's not from the Feds, Feds warn