CVE-2018-0457 Cisco Webex Player WRF Files Denial of Service Vulnerability

Medium 5.5 Published 5 Oct 2018 Updated 26 Nov 2024

An attacker can cause a denial of service by tricking a user into opening a malicious WRF file in the Cisco Webex Player.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-0457?

CVE-2018-0457 is a medium-severity denial of service vulnerability in Cisco Webex Meetings Online, published on 5 Oct 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the Cisco Webex Player for Webex Recording Format (WRF) files could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. An attacker could exploit this vulnerability by sending a user a link or email attachment with a malicious WRF file and persuading the user to open the file in the Cisco Webex Player. A successful exploit could cause the affected player to crash, resulting in a DoS condition. For more information about this vulnerability, see the Details section of this security advisory.

Weakness: CWE-399

Which versions are affected by CVE-2018-0457?

It affects 1 product.

Products include Cisco Webex Meetings Online.

How do I fix CVE-2018-0457?

No fix has been published for CVE-2018-0457 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-2018-0457 being exploited?

There is no known exploitation of CVE-2018-0457 in the wild and no public exploit code.

All Cisco Webex Meetings Online vulnerabilities

Sources

Also known as GHSA-9j74-vrxp-gj59.