Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Identity & Access

Cisco Patches Critical Flaw in Aironet Access Points

Cisco published an advisory on Wednesday to warn customers that some of the company’s Aironet access points are affected by a critical flaw that could allow an attacker to take complete control of a vulnerable device.

Cisco published an advisory on Wednesday to warn customers that some of the company’s Aironet access points are affected by a critical flaw that could allow an attacker to take complete control of a vulnerable device.

The security hole, tracked as CVE-2017-3834, involves the existence of default credentials that can be used by a remote attacker who has layer 3 connectivity to log in to a device with elevated privileges via SSH.

The vulnerability impacts Cisco Aironet 1830 and 1850 series APs running an 8.2.x version of the Mobility Express software prior to 8.2.111.0. The company pointed out that the weakness can be exploited regardless of whether the device is configured as a master, subordinate or standalone AP.

Cisco has also informed customers of a medium severity shell bypass vulnerability affecting Aironet 1800, 2800 and 3800 series APs. A local attacker with root privileges can exploit the flaw to gain root access to the underlying Linux operating system. This root shell is designed only for advanced troubleshooting and it should not be available to any user, even if they have root privileges.

The networking giant has also published advisories detailing three high severity denial-of-service (DoS) vulnerabilities affecting its Wireless LAN Controller (WLC) software.

These security holes affect the Wireless Multimedia Extensions (WME), IPv6 UDP ingress packet processing, and the web management interface components of the WLC software. Remote or adjacent attackers can exploit the flaws without authentication.

Cisco has released software updates for each of the affected WLC versions. Workarounds are not available.

Most of these vulnerabilities were discovered by Cisco itself and the company said there was no evidence of exploitation in the wild.

Advertisement. Scroll to continue reading.

Related: Critical Cisco Prime Home Flaw Allows Authentication Bypass

Related: Cisco Patches Serious DoS Flaws in IOS

Related: Cisco Patches WebEx Flaw in Firefox, IE Plugins

Related: Cisco Patches Serious Flaws in Collaboration Products

Written By

Eduard Kovacs (@EduardKovacs) is a managing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Trending

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Learn how the LOtL threat landscape has evolved, why traditional endpoint hardening methods fall short, and how adaptive, user-aware approaches can reduce risk.

Watch Now

Join the summit to explore critical threats to public cloud infrastructure, APIs, and identity systems through discussions, case studies, and insights into emerging technologies like AI and LLMs.

Register

People on the Move

Kenna Security co-founder Ed Bellis has joined Empirical Security as Chief Executive Officer.

Robert Shaker II has joined application security firm ActiveState as Chief Product and Technology Officer.

MorganFranklin Cyber has promoted Nick Stallone and Ferdinand Hamada into newly created roles.

More People On The Move

Expert Insights

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest cybersecurity news, threats, and expert insights. Unsubscribe at any time.