CVE-2017-12371 Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players

Critical 9.6 Published 30 Nov 2017 Updated 5 Aug 2024

Remote attackers can execute arbitrary code or cause denial of service by tricking users into opening malicious WebEx recording files.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2017-12371?

CVE-2017-12371 is a critical memory corruption vulnerability in Cisco Webex Meetings, published on 30 Nov 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A "Cisco WebEx Network Recording Player Remote Code Execution Vulnerability" exists in Cisco WebEx Network Recording Player for Advanced Recording Format (ARF) and WebEx Recording Format (WRF) files. A remote attacker could exploit this by providing a user with a malicious ARF or WRF file via email or URL and convincing the user to launch the file. Exploitation of this could cause an affected player to crash and, in some cases, could allow arbitrary code execution on the system of a targeted user. Cisco Bug IDs: CSCvf49650, CSCvg54853, CSCvg54856, CSCvf49697, CSCvg54861, CSCvf49707, CSCvg54867.

Weakness: CWE-119

Which versions are affected by CVE-2017-12371?

It affects 1 product.

Products include Cisco Webex Meetings.

How do I fix CVE-2017-12371?

No fix has been published for CVE-2017-12371 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-12371 being exploited?

There is no known exploitation of CVE-2017-12371 in the wild and no public exploit code.

All Cisco Webex Meetings vulnerabilities

Sources

Also known as GHSA-9p4p-7m2v-wch8.