#VU77084 Permissions, Privileges, and Access Controls in Expressway Series and TelePresence Video Communication Server (VCS) - CVE-2023-20192

Vulnerability identifier: #VU77084

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20192

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Expressway Series
Server applications / Conferencing, Collaboration and VoIP solutions
TelePresence Video Communication Server (VCS)
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect implementation of user role permissions. A local user can execute arbitrary commands beyond the sphere of their intended access level.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Expressway Series: 14.0

TelePresence Video Communication Server (VCS): 14.0

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-priv-esc-Ls2B9t7b

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.