A vulnerability in Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) Software could allow an authenticated, remote attacker to cause the Cisco XCP Authentication Service on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of login requests. An attacker could exploit this vulnerability by sending a crafted client login request to an affected device. A successful exploit could allow the attacker to cause a process to crash, resulting in a DoS condition for new login attempts. Users who are authenticated at the time of the attack would not be affected. There are workarounds that address this vulnerability.
History

Wed, 13 Nov 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2020-11-06T18:15:38.587985Z

Updated: 2024-11-13T17:44:46.213Z

Reserved: 2020-10-13T00:00:00

Link: CVE-2020-27121

cve-icon Vulnrichment

Updated: 2024-08-04T16:11:35.479Z

cve-icon NVD

Status : Modified

Published: 2020-11-06T19:15:13.360

Modified: 2023-11-07T03:20:47.470

Link: CVE-2020-27121

cve-icon Redhat

No data.