CVE-2019-1678 Cisco Meeting Server Denial of Service Vulnerability

Medium 4.3 Published 7 Feb 2019 Updated 21 Nov 2024

An authenticated remote attacker can cause a partial denial of service in Cisco Meeting Server by exploiting improper validation of coSpaces configuration parameters.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-1678?

CVE-2019-1678 is a medium-severity denial of service vulnerability in Cisco Meeting Server, published on 7 Feb 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in Cisco Meeting Server could allow an authenticated, remote attacker to cause a partial denial of service (DoS) to Cisco Meetings application users who are paired with a Session Initiation Protocol (SIP) endpoint. The vulnerability is due to improper validation of coSpaces configuration parameters. An attacker could exploit this vulnerability by inserting crafted strings in specific coSpace parameters. An exploit could allow the attacker to prevent clients from joining a conference call in the affected coSpace. Versions prior to 2.4.3 are affected.

Weakness: CWE-20

Which versions are affected by CVE-2019-1678?

It affects 1 product.

Products include Cisco Meeting Server.

How do I fix CVE-2019-1678?

No fix has been published for CVE-2019-1678 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-2019-1678 being exploited?

There is no known exploitation of CVE-2019-1678 in the wild and no public exploit code.

Sources

Also known as GHSA-xvgf-4x2w-f753.