CVE-2020-3160 Cisco Meeting Server Extensible Messaging and Presence Protocol Denial of Service Vulnerability

Medium 5.3 Published 19 Feb 2020 Updated 15 Nov 2024

Unauthenticated remote attackers can cause denial of service in XMPP conferencing applications by sending crafted XMPP packets to Cisco Meeting Server.

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-2020-3160?

CVE-2020-3160 is a medium-severity denial of service vulnerability in Cisco Meeting Server, published on 19 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) feature of Cisco Meeting Server software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition for users of XMPP conferencing applications. Other applications and processes are unaffected. The vulnerability is due to improper input validation of XMPP packets. An attacker could exploit this vulnerability by sending crafted XMPP packets to an affected device. An exploit could allow the attacker to cause process crashes and a DoS condition for XMPP conferencing applications.

Weakness: CWE-20

Which versions are affected by CVE-2020-3160?

It affects 1 product.

Products include Cisco Meeting Server.

How do I fix CVE-2020-3160?

No fix has been published for CVE-2020-3160 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-2020-3160 being exploited?

There is no known exploitation of CVE-2020-3160 in the wild and no public exploit code.

Sources

Also known as GHSA-96jq-mvwr-8h4g.