CVE-2021-1502 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability
Attackers can execute arbitrary code by tricking users into opening malicious Webex recording files, requiring user interaction.
- 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-2021-1502?
CVE-2021-1502 is a high-severity memory corruption vulnerability in Cisco Webex Meetings Online, published on 4 Jun 2021. 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 Cisco Webex Network Recording Player for Windows and MacOS and Cisco Webex Player for Windows and MacOS could allow an attacker to execute arbitrary code on an affected system. The vulnerability is due to insufficient validation of values within Webex recording files formatted as either Advanced Recording Format (ARF) or Webex Recording Format (WRF). An attacker could exploit the vulnerability by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.
Weakness: CWE-119
Which versions are affected by CVE-2021-1502?
It affects 5 products.
Products include Cisco Webex Meetings Desktop, Cisco Webex Meetings Online, Cisco Webex Meetings Server, Cisco Webex Network Recording Player, Cisco Webex Teams.
How do I fix CVE-2021-1502?
No fix has been published for CVE-2021-1502 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-2021-1502 being exploited?
There is no known exploitation of CVE-2021-1502 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings Online
Sources
Also known as GHSA-34qr-5fqg-cj38.