PT-2017-17324 · Cisco · Cisco Unified Communications Manager

Published 2017-09-07 · Updated 2019-10-09 · CVE-2017-6791

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Unified Communications Manager versions 9.1(2.10000.28) through 11.0(1.10000.10)

Description A vulnerability in the Trust Verification Service (TVS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The issue is due to improper handling of Transport Layer Security (TLS) traffic. An attacker could exploit this by generating incomplete traffic streams, denying access to the TVS until an administrator restarts the service.

Recommendations For version 9.1(2.10000.28), restart the Trust Verification Service to restore access. For version 10.0(1.10000.24), restart the Trust Verification Service to restore access. For version 10.5(2.10000.5), restart the Trust Verification Service to restore access. For version 11.0(1.10000.10), restart the Trust Verification Service to restore access.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2017-6791

Affected Products

Cisco Unified Communications Manager

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2017-6791 · Security Note
• https://osv.dev/vulnerability/CVE-2017-6791 · Vendor Advisory
• https://quickview.cloudapps.cisco.com/quickview/bug/CSCux21905 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-ucm · Vendor Advisory
• http://securityfocus.com/bid/100662 · Note
• http://securitytracker.com/id/1039286 · Note