Privilege escalation in Cisco Expressway Series and TelePresence Video Communication Server
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-20192 |
| CWE-ID | CWE-264 |
| Exploitation vector | Local |
| Public exploit | N/A |
| 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 |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU77084
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 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsExpressway Series: 14.0
TelePresence Video Communication Server (VCS): 14.0
CPE2.3- cpe:2.3:a:cisco_systems:expressway_series:14.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:telepresence_video_communication_server_vcs:14.0:*:*:*:*:*:*:*
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.
