Cisco fixes unauthorised access flaws in access points, wireless LAN controllers

The vulnerabilities could allow remote attackers to compromise the affected devices

Cisco Systems released critical security updates for several products, including access points and wireless LAN controllers, in order to fix vulnerabilities that could give remote attackers access to devices.

The Cisco Aironet 1830e, 1830i, 1850e and 1850i series access points contain a default account with a static password that attackers can use to gain unauthorized access, the company said in an advisory.

Fortunately, the account does not have administrative privileges, so the vulnerability is only rated as high impact instead of critical.

The same products are affected by a separate denial-of-service vulnerability that stems from improper input validation of IP packet headers.

Things are more serious with a vulnerability in Cisco Wireless LAN Controller (WLC) software versions 7.6.120.0 or later, 8.0 or later, or 8.1 or later that can allow remote, unauthenticated attackers to change the configuration of devices and completely compromise them.

The affected devices are Cisco 2500, 5500, 8500 series Wireless Controllers, as well as Cisco Flex 7500 Series and Cisco Virtual Wireless Controllers. Modular controllers that run Cisco WLC software are also affected. These include Integrated Services Module 300, SRE 700, SRE 710, SRE 900, and SRE 910, as well as Cisco Wireless Services Module 2 (WiSM-2).

The Cisco Identity Services Engine versions prior to 2.0 also contained two unauthorized access vulnerabilities that have been patched. One of them is rated as medium and one as critical.

The critical flaw affects Cisco ISE devices running software versions 1.1 or later, 1.2.0 prior to patch 17, 1.2.1 prior to patch 8, 1.3 prior to patch 5, or 1.4 prior to patch 4. If left unpatched, it could allow remote, unauthenticated attackers to completely compromise the devices.

Join the CSO newsletter!

Error: Please check your email address.

More about AironetCiscoLANModular

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Lucian Constantin

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place