QID 38897

Date Published: 2023-06-08

QID 38897: Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities (cisco-sa-expressway-priv-esc-Ls2B9t7b) (CVE-2023-20105)

Multiple vulnerabilities in Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system.

Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

Affected Products
Cisco TelePresence VCS Release prior to version 14.2.1

QID Detection Logic (Unauthenticated):
The check matches version of Cisco TelePresence Video Communication Server on the exposed banner information under the SIP banner.

Note: This is banner based detection, hence QID is kept as practice.

A successful exploit could allow the attacker to alter the passwords of any user on the system, including an administrative read-write user, and then impersonate that user.

  • CVSS V3 rated as Critical - 9.6 severity.
  • CVSS V2 rated as Medium - 5.5 severity.
    • Solution

    Customers are advised to refer to cisco-sa-expressway-priv-esc-Ls2B9t7b for more information.

    Vendor References

    CVEs related to QID 38897

    CVE-2023-20105 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-expressway-priv-esc-Ls2B9t7b URL Logo sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-priv-esc-Ls2B9t7b
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