OS Command Injection in Cisco Expressway Series and Cisco TelePresence Video Communication Server

1) OS Command Injection

EUVDB-ID: #VU79953

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-20209

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the web-based management interface. A remote administrator can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Expressway Series: 14.0

TelePresence Video Communication Server (VCS): 14.0

CPE2.3

• cpe:2.3:a:cisco_systems:expressway_series:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:expressway_series:14.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:telepresence_video_communication_server_vcs:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:telepresence_video_communication_server_vcs:14.0:*:*:*:*:*:*:*

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-injection-X475EbTQ

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.