SB2021050624 - Denial of service in Cisco Unified Communications Manager and Unified Communications Manager Session Management Edition
Published: May 6, 2021
Security Bulletin ID
SB2021050624
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2021-1478)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
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.