PT-2023-3112 · Cisco · Cisco Expressway Series+1

Published 2023-06-07 · Updated 2023-07-06 · CVE-2023-20192

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Expressway Series versions (affected versions not specified) Cisco TelePresence Video Communication Server (VCS) versions (affected versions not specified)

Description The issue is related to insufficient role-based access control in the CLI interface of the Cisco Expressway and Cisco TelePresence Video Communication Server (VCS) software. This could allow an attacker to elevate their privileges. An authenticated attacker with Administrator-level read-only credentials may be able to gain Administrator with read-write credentials on an affected system.

Recommendations For Cisco Expressway Series, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For Cisco TelePresence Video Communication Server (VCS), at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

RCE

Weakness Enumeration

CWE-284

CWE-20

CWE-264

Related Identifiers

BDU:2023-03206

CVE-2023-20192

Affected Products

Cisco Expressway Series

Cisco Telepresence Video Communication Server

References · 5

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-priv-esc-Ls2B9t7b · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-20192 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20192 · Security Note
• https://bdu.fstec.ru/vul/2023-03206 · Security Note
• https://t.me/true_secator/4479 · Telegram Post