CVE-2023-20273 : A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to inject c

CVE-2023-20273 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Cisco IOS XE Web UI Command Injection Vulnerability

CISA required action:

Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and

CISA description:

Cisco IOS XE contains a command injection vulnerability in the web user interface. When chained with CVE-2023-20198, the attacker can leverage the new local user to elevate privilege to root and write the implant to the file system. Cisco identified CVE-2023-20273 as the vulnerability exploited to d

Notes:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z; https://nvd.nist.gov/vuln/detail/CVE-2023-20273

Added on 2023-10-23 Action due date 2023-10-27

Exploit prediction scoring system (EPSS) score for CVE-2023-20273

EPSS FAQ

3.83%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 92 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2023-20273

Cisco IOX XE Unauthenticated RCE Chain

Disclosure Date: 2023-10-16

First seen: 2023-11-09

exploit/linux/misc/cisco_ios_xe_rce

This module leverages both CVE-2023-20198 and CVE-2023-20273 against vulnerable instances of Cisco IOS XE devices which have the Web UI exposed. An attacker can execute a payload with root privileges. The vulnerable IOS XE versions are: 16.1.1, 16.1.2, 16.1.

More information
Cisco IOX XE unauthenticated OS command execution

Disclosure Date: 2023-10-16

First seen: 2023-11-09

auxiliary/admin/http/cisco_ios_xe_os_exec_cve_2023_20273

This module leverages both CVE-2023-20198 and CVE-2023-20273 against vulnerable instances of Cisco IOS XE devices which have the Web UI exposed. An attacker can execute arbitrary OS commands with root privileges. This module leverages CVE-2023-20198 to create a new ad

More information

CVSS scores for CVE-2023-20273

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	1.2	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	1.2	5.9	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2023-20273

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

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2023-20273

http://packetstormsecurity.com/files/175674/Cisco-IOX-XE-Unauthenticated-Remote-Code-Execution.html

Cisco IOX XE Unauthenticated Remote Code Execution ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry

CVEs referencing this url
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z

Cisco IOS XE Software Web UI Privilege Escalation Vulnerability
Vendor Advisory

CVEs referencing this url

Products affected by CVE-2023-20273

Cisco » Ios Xe
Versions from including (>=) 17.6 and before (<) 17.6.6a
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Matching versions
Cisco » Ios Xe
Versions from including (>=) 16.12 and before (<) 16.12.10a
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Catalyst 3650 » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48fd-e » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48fd-l » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48fd-s » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uq » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uq-e » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uq-l » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uq-s » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48ur » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48ur-e » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48ur-l » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48ur-s » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uz » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uz-e » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uz-l » Version: N/A
When used together with: Cisco » Catalyst 3650-12x48uz-s » Version: N/A
When used together with: Cisco » Catalyst 3650-24pd » Version: N/A
When used together with: Cisco » Catalyst 3650-24pd-e » Version: N/A
When used together with: Cisco » Catalyst 3650-24pd-l » Version: N/A
When used together with: Cisco » Catalyst 3650-24pd-s » Version: N/A
When used together with: Cisco » Catalyst 3650-24pdm » Version: N/A
When used together with: Cisco » Catalyst 3650-24pdm-e » Version: N/A
When used together with: Cisco » Catalyst 3650-24pdm-l » Version: N/A
When used together with: Cisco » Catalyst 3650-24pdm-s » Version: N/A
When used together with: Cisco » Catalyst 3650-24ps-e » Version: N/A
When used together with: Cisco » Catalyst 3650-24ps-l » Version: N/A
When used together with: Cisco » Catalyst 3650-24ps-s » Version: N/A
When used together with: Cisco » Catalyst 3650-24td-e » Version: N/A
When used together with: Cisco » Catalyst 3650-24td-l » Version: N/A
When used together with: Cisco » Catalyst 3650-24td-s » Version: N/A
When used together with: Cisco » Catalyst 3650-24ts-e » Version: N/A
When used together with: Cisco » Catalyst 3650-24ts-l » Version: N/A
When used together with: Cisco » Catalyst 3650-24ts-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48fd-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48fd-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48fd-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48fq » Version: N/A
When used together with: Cisco » Catalyst 3650-48fq-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48fq-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48fq-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48fqm » Version: N/A
When used together with: Cisco » Catalyst 3650-48fqm-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48fqm-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48fqm-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48fs-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48fs-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48fs-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48pd-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48pd-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48pd-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48pq-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48pq-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48pq-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48ps-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48ps-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48ps-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48td-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48td-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48td-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48tq-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48tq-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48tq-s » Version: N/A
When used together with: Cisco » Catalyst 3650-48ts-e » Version: N/A
When used together with: Cisco » Catalyst 3650-48ts-l » Version: N/A
When used together with: Cisco » Catalyst 3650-48ts-s » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24pd-e » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24pd-l » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24pd-s » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24uq » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24uq-e » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24uq-l » Version: N/A
When used together with: Cisco » Catalyst 3650-8x24uq-s » Version: N/A
When used together with: Cisco » Catalyst 3850 » Version: N/A
When used together with: Cisco » Catalyst 3850-12s-e » Version: N/A
When used together with: Cisco » Catalyst 3850-12s-s » Version: N/A
When used together with: Cisco » Catalyst 3850-12x48u » Version: N/A
When used together with: Cisco » Catalyst 3850-12xs-e » Version: N/A
When used together with: Cisco » Catalyst 3850-12xs-s » Version: N/A
When used together with: Cisco » Catalyst 3850-16xs-e » Version: N/A
When used together with: Cisco » Catalyst 3850-16xs-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24p-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24p-l » Version: N/A
When used together with: Cisco » Catalyst 3850-24p-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24pw-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24s-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24s-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24t-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24t-l » Version: N/A
When used together with: Cisco » Catalyst 3850-24t-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24u » Version: N/A
When used together with: Cisco » Catalyst 3850-24u-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24u-l » Version: N/A
When used together with: Cisco » Catalyst 3850-24u-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24xs » Version: N/A
When used together with: Cisco » Catalyst 3850-24xs-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24xs-s » Version: N/A
When used together with: Cisco » Catalyst 3850-24xu » Version: N/A
When used together with: Cisco » Catalyst 3850-24xu-e » Version: N/A
When used together with: Cisco » Catalyst 3850-24xu-l » Version: N/A
When used together with: Cisco » Catalyst 3850-24xu-s » Version: N/A
When used together with: Cisco » Catalyst 3850-32xs-e » Version: N/A
When used together with: Cisco » Catalyst 3850-32xs-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48f-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48f-l » Version: N/A
When used together with: Cisco » Catalyst 3850-48f-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48p-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48p-l » Version: N/A
When used together with: Cisco » Catalyst 3850-48p-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48pw-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48t-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48t-l » Version: N/A
When used together with: Cisco » Catalyst 3850-48t-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48u » Version: N/A
When used together with: Cisco » Catalyst 3850-48u-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48u-l » Version: N/A
When used together with: Cisco » Catalyst 3850-48u-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48xs » Version: N/A
When used together with: Cisco » Catalyst 3850-48xs-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48xs-f-e » Version: N/A
When used together with: Cisco » Catalyst 3850-48xs-f-s » Version: N/A
When used together with: Cisco » Catalyst 3850-48xs-s » Version: N/A
When used together with: Cisco » Catalyst 3850-nm-2-40g » Version: N/A
When used together with: Cisco » Catalyst 3850-nm-8-10g » Version: N/A
Cisco » Ios Xe
Versions from including (>=) 17.9 and before (<) 17.9.4a
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Matching versions
Cisco » Ios Xe
Versions from including (>=) 17.3 and before (<) 17.3.8a
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2023-20273