OS Command Injection in Cisco IOS XE Software

1) OS Command Injection

EUVDB-ID: #VU81286

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20231

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

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the web UI. A remote user 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

Cisco IOS XE: 16.12.4 - 17.10.1b

Catalyst 9300 Series Switches: All versions

Catalyst 9400 Series Switches: All versions

Catalyst 9500 Series Switches: All versions

Catalyst 9800-CL Wireless Controllers for Cloud: All versions

Catalyst 9800 Embedded Wireless Controller: All versions

Embedded Wireless Controller on Catalyst 9100X Series Access Points: All versions

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webui-cmdij-FzZAeXAy

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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