Denial of Service Vulnerability in Cisco Unified Communications Manager Products
CVE-2018-0409

7.5HIGH

Key Information:

Vendor
Cisco
Status
Unified Communications Manager Im & Presence Service (cucm Im&p)
Telepresence Video Communication Server (vcs) And Expressway
Vendor
CVE Published:
15 August 2018

Summary

A vulnerability exists in the XCP Router service of Cisco Unified Communications Manager IM & Presence Service and related products, which could be exploited by an unauthenticated remote attacker to create a temporary service outage for all IM&P users. The issue stems from inadequate validation of user-supplied input. An attacker could send specially crafted IPv4 or IPv6 packets to the device's TCP port 7400, leading to a buffer over-read, causing the XCP Router service to crash and restart. This results in service disruption for users relying on the affected systems.

Affected Version(s)

TelePresence Video Communication Server (VCS) and Expressway = unspecified

Unified Communications Manager IM & Presence Service (CUCM IM&P) = unspecified

References

http://www.securitytracker.com/id/1041534
vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/105104
vdb-entryx_refsource_BID
https://tools.cisco.com/security/center/content/CiscoSecu...
vendor-advisoryx_refsource_CISCO

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.