CoreCVE
Back

HIGH

A vulnerability in the XCP Authentication Service of the Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to cause a temporary service outage for all Cisco Unified CM IM&P users who are attempting to authenticate to the service, resulting in a denial of service (DoS) condition

Published Jun 28, 2023

Description

A vulnerability in the XCP Authentication Service of the Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to cause a temporary service outage for all Cisco Unified CM IM&P users who are attempting to authenticate to the service, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted login message to the affected device. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing new users from successfully authenticating. Exploitation of this vulnerability does not impact Cisco Unified CM IM&P users who were authenticated prior to an attack.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-770

Allocation of Resources Without Limits

CWE-789

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Jun 28, 2023
Updated Aug 2, 2024
Reserved Oct 27, 2022
Link CVE-2023-20108
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2023-20108
Red Hat
Severity n/a
Public date n/a
Links CVE-2023-20108
ENISA EUVD
Assigner cisco
Published Jun 28, 2023
Updated Aug 2, 2024
Exploited since n/a
Link EUVD-2023-24287
EUVD-2023-24287