QID 38898

Date Published: 2023-06-08

QID 38898: Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities (cisco-sa-expressway-priv-esc-Ls2B9t7b) (CVE-2023-20192)

A vulnerability in the privilege management functionality of Cisco Expressway Series and Cisco TelePresence VCS could allow an authenticated, local attacker with Administrator-level read-only CLI credentials to elevate their privileges to Administrator with read-write credentials on an affected system.

Affected Products
Cisco TelePresence VCS Release prior to version 14.3.0

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 and cannot check for a workaround, hence QID is kept as practice.

A successful exploit could allow the attacker to execute commands beyond the sphere of their intended access level, including modifying system configuration parameters.

  • CVSS V3 rated as Critical - 8.4 severity.
  • CVSS V2 rated as High - 6.2 severity.
    • Solution

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

    Vendor References

    CVEs related to QID 38898

    CVE-2023-20192 |
    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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