CVE-2019-1799 Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabilities

High 7.4 Published Updated

An unauthenticated adjacent attacker can cause a denial of service by sending malicious IAPP messages to Cisco Wireless LAN Controllers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1799?

CVE-2019-1799 is a high-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, published on 18 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the handling of Inter-Access Point Protocol (IAPP) messages by Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability exist because the software improperly validates input on fields within IAPP messages. An attacker could exploit the vulnerability by sending malicious IAPP messages to an affected device. A successful exploit could allow the attacker to cause the Cisco WLC Software to reload, resulting in a DoS condition. Software versions prior to 8.2.170.0, 8.5.150.0, and 8.8.100.0 are affected.

Weakness: CWE-20, CWE-399

Which versions are affected by CVE-2019-1799?

It affects 2 products.

Products include Cisco Wireless Lan Controller, Cisco Wireless Lan Controller Software.

How do I fix CVE-2019-1799?

No fix has been published for CVE-2019-1799 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-2019-1799 being exploited?

There is no known exploitation of CVE-2019-1799 in the wild and no public exploit code.

All Cisco Wireless Lan Controller Software vulnerabilities

Sources

Also known as GHSA-9rrr-fcv6-2wgf.

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