Denial of service in Cisco Unified Communications Manager IM & Presence Service

1) Input validation error

EUVDB-ID: #VU77085

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20108

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the XCP Authentication Service. A remote attacker can send a specially crafted login message and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Unified Communications Manager IM & Presence Service: 12.5.1 - 14SU

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_im_presence_service:12.5.1:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_im_presence_service:14SU:*:*:*:*:*:*:

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-imp-dos-49GL7rzT

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.