CVE-2017-3832 Denial of service in Cisco Wireless LAN Controller

High 7.5 Published Updated

Unauthenticated remote attackers can cause a denial of service by accessing a specific hidden URL in the Cisco WLC web interface.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-3832?

CVE-2017-3832 is a high-severity denial of service vulnerability in Cisco Wireless LAN Controller, published on 6 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the web management interface of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a missing internal handler for the specific request. An attacker could exploit this vulnerability by accessing a specific hidden URL on the GUI web management interface. A successful exploit could allow the attacker to cause a reload of the device, resulting in a DoS condition. This vulnerability affects only the Cisco Wireless LAN Controller 8.3.102.0 release. Cisco Bug IDs: CSCvb48198.

Weakness: CWE-755, CWE-264

Which versions are affected by CVE-2017-3832?

It affects 1 product.

Products include Cisco Wireless Lan Controller Firmware.

How do I fix CVE-2017-3832?

No fix has been published for CVE-2017-3832 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-3832 being exploited?

There is no known exploitation of CVE-2017-3832 in the wild and no public exploit code.

Sources

Also known as GHSA-g2wc-3mq6-j4gx.

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