Menu
Flaws expose Cisco small-business routers, firewalls to hacking

Flaws expose Cisco small-business routers, firewalls to hacking

Attackers can take control of the affected devices by sending specifically crafted HTTP requests to them

Three models of Cisco wireless VPN firewalls and routers from the small business RV series contain a critical unpatched vulnerability that attackers can exploit remotely to take control of devices.

The vulnerability is located in the Web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, RV130W Wireless-N Multifunction VPN Router and RV215W Wireless-N VPN Router.

It can be easily exploited if the affected devices are configured for remote management since attackers only need to send an unauthenticated HTTP request with custom user data. This will result in remote code execution as root, the highest privileged account on the system, and can lead to a complete compromise.

Cisco Systems warned about the vulnerability in a security advisory Wednesday, but no patches are yet available. The company plans to release firmware updates that will address this flaw on affected models sometime in the third quarter of 2016.

Worse yet, this is not the only unpatched vulnerability that exists in these three Cisco devices. The company also warned of a medium-severity, cross-site scripting (XSS) flaw and two medium-risk buffer overflows that could result in denial-of-service conditions.

While exploiting the buffer overflows requires attackers to have an authenticated session in the device's Web-based interface, the XSS flaw can be triggered by tricking authenticated users to click on specifically crafted URLs.

"A successful exploit could allow the attacker to execute arbitrary script in the context of the web-based management interface for the device or allow the attacker to access sensitive browser-based information," Cisco said in an advisory.

The XSS flaw makes it difficult for users to find a mitigation strategy in the absence of patches, because it can be combined with the other vulnerabilities. For example, if users disable external management in their devices in order to protect them from the critical vulnerability, the devices will still be exposed through the cross-site scripting flaw.


Follow Us

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Events

Why experience is the new battleground for partners

Join us for an exclusive webinar, in association with Hewlett Packard Enterprise and Technology Services Industry Association (TSIA) and learn about the latest industry insights and how technology services continue to evolve to deliver differentiated value, and how partners can be successful in 2021 and beyond.

Featured

Slideshows

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards

Hundreds of leaders from the New Zealand IT industry gathered at the Hilton in Auckland on 17 November to celebrate the finest female talent in the Kiwi channel and recognise the winners of the Reseller News Women in ICT Awards (WIICTA) 2020.

The Kiwi channel gathers for the 2020 Reseller News Women in ICT Awards
Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards

Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards

The leading female front runners of the New Zealand ICT industry joined together for the annual Reseller News Women in ICT Awards event at the Hilton in Auckland, during which hundreds of guests celebrated 13 outstanding individuals who won awards, chosen from more than 50 finalists representing over 30 organisations.

Leading female front runners honoured at the 2020 Reseller News Women in ICT Awards
Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners

Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners

More than 500 channel leaders gathered in Auckland on 21 October at the ​Reseller News Innovation Awards ​2020 to celebrate the achievements of the New Zealand technology industry's top partners, start-ups, vendors, distributors and individuals.

Channel gathers to celebrate the Reseller News Innovation Awards 2020 winners
Show Comments