SB2021050624 - Denial of service in Cisco Unified Communications Manager and Unified Communications Manager Session Management Edition



SB2021050624 - Denial of service in Cisco Unified Communications Manager and Unified Communications Manager Session Management Edition

Published: May 6, 2021

Security Bulletin ID SB2021050624
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper access control (CVE-ID: CVE-2021-1478)

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the Java Management Extensions (JMX) component. A remote attacker can access the port and restart the JMX process, leading to denial of service (DoS) condition.


Remediation

Install update from vendor's website.