SB2021082303 - Multiple vulnerabilities in Cisco Expressway Series and TelePresence Video Communication Server

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Main Vulnerability Database SB2021082303

SB2021082303 - Multiple vulnerabilities in Cisco Expressway Series and TelePresence Video Communication Server

Published: August 23, 2021

Security Bulletin ID SB2021082303
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2021-34715)

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to insufficient validation of the content of upgrade packages. A remote administrator can upload a malicious archive to the Upgrade page and execute arbitrary code on the target system.


2) Improper Cleanup on Thrown Exception (CVE-ID: CVE-2021-34716)

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to incorrect handling of certain crafted software images that are uploaded to the affected device. A remote administrator can upload specially crafted software images and execute arbitrary code on the underlying operating system. 


Remediation

Install update from vendor's website.

References