CVE-2019-1845

A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack.

CVSS v3 8.6 HIGH
CVSS v2.0 5.0 MEDIUM

8.6^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.securityfocus.com/bid/108615	Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-cucm-imp-dos	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:telepresence_video_communication_server::::::::
	cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):::::::*

History

No history.

Information

Published : 2019-06-05 17:29

Updated : 2024-02-04 20:20

NVD link : CVE-2019-1845

Mitre link : CVE-2019-1845

CVE.ORG link : CVE-2019-1845

JSON object : View

Products Affected

cisco

telepresence_video_communication_server
unified_communications_manager_im_and_presence_service

CWE

CWE-20

Improper Input Validation

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