cisco-sa-ewrce-QPynNCjh: Cisco Expressway Series and TelePresence Video Communication Server Remote Code Execution Vulnerability
First published: Wed Aug 18 2021(Updated: )
A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute arbitrary code on the underlying operating system as the root user. This vulnerability is due to incorrect handling of certain crafted software images that are uploaded to the affected device. An attacker could exploit this vulnerability by authenticating to the system as an administrative user and then uploading specific crafted software images to the affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewrce-QPynNCjh
Credit: Rui Ataide NetWitness Incident Response TeamHermes Bojaxhi NetWitness Incident Response Team
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Expressway | ||
| Cisco TelePresence Video Communication Server Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-ewrce-QPynNCjh?
The severity of cisco-sa-ewrce-QPynNCjh is high due to its potential to allow authenticated attackers to execute arbitrary code as the root user.
How do I fix cisco-sa-ewrce-QPynNCjh?
To fix cisco-sa-ewrce-QPynNCjh, you should apply the latest firmware updates provided by Cisco for the affected products.
Which products are affected by cisco-sa-ewrce-QPynNCjh?
The affected products by cisco-sa-ewrce-QPynNCjh include Cisco Expressway Series and Cisco TelePresence Video Communication Server.
What type of attack does cisco-sa-ewrce-QPynNCjh involve?
cisco-sa-ewrce-QPynNCjh involves a remote code execution attack that requires authentication.
Is authentication required for exploiting cisco-sa-ewrce-QPynNCjh?
Yes, exploitation of cisco-sa-ewrce-QPynNCjh requires authenticated access to the web-based management interface.
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