What is CVE-2021-34715?

CVE-2021-34715 is a vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) that allows an authenticated, remote attacker to execute code with internal user privileges on the underlying operating system.

How severe is CVE-2021-34715?

CVE-2021-34715 has a severity score of 7.2, which is considered critical.

Which software is affected by CVE-2021-34715?

Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) versions up to x8.8.0 are affected by CVE-2021-34715.

How can an attacker exploit CVE-2021-34715?

An attacker can exploit CVE-2021-34715 by gaining authenticated remote access and executing code with internal user privileges on the underlying operating system.

Is there a fix available for CVE-2021-34715?

Yes, Cisco has released a security advisory with the necessary patches and mitigation details for CVE-2021-34715.

Vulnerability/
CVE-2021-34715

critical

CWE

347

18/8/2021

25/8/2021

CVE-2021-34715

First published: Wed Aug 18 2021(Updated: )

A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with internal user privileges on the underlying operating system. The vulnerability is due to insufficient validation of the content of upgrade packages. An attacker could exploit this vulnerability by uploading a malicious archive to the Upgrade page of the administrative web interface. A successful exploit could allow the attacker to execute code with user-level privileges (the _nobody account) on the underlying operating system.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Expressway	<=x8.8.0
Cisco TelePresence Video Communication Server	<=x8.8

Never miss a vulnerability like this again

Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewver-c6WZPXRx

Frequently Asked Questions

What is CVE-2021-34715?
CVE-2021-34715 is a vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) that allows an authenticated, remote attacker to execute code with internal user privileges on the underlying operating system.
How severe is CVE-2021-34715?
CVE-2021-34715 has a severity score of 7.2, which is considered critical.
Which software is affected by CVE-2021-34715?
Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) versions up to x8.8.0 are affected by CVE-2021-34715.
How can an attacker exploit CVE-2021-34715?
An attacker can exploit CVE-2021-34715 by gaining authenticated remote access and executing code with internal user privileges on the underlying operating system.
Is there a fix available for CVE-2021-34715?
Yes, Cisco has released a security advisory with the necessary patches and mitigation details for CVE-2021-34715.

collector/nvd-index
agent/weakness
vendor/cisco
canonical/cisco expressway
version/cisco expressway/x8.8.0
canonical/cisco telepresence video communication server
version/cisco telepresence video communication server/x8.8

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.