Multiple vulnerabilities in Cisco IOS XE Web UI software



| Updated: 2025-04-18
Risk Critical
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-20198
CVE-2023-20273
CWE-ID CWE-269
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerable software
 Cisco IOS XE
Operating systems & Components / Operating system

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated 23.10.2023

Added vulnerability #2

1) Improper Privilege Management

EUVDB-ID: #VU82065

Risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2023-20198

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper privilege management in the web UI feature. A remote non-authenticated attacker can send a specially crafted HTTP request to the affected device and create an account with privilege level 15 access.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco IOS XE: before

CPE2.3 External links

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwh87343
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z
https://www.horizon3.ai/cisco-ios-xe-cve-2023-20198-theory-crafting/
https://www.horizon3.ai/cisco-ios-xe-cve-2023-20198-deep-dive-and-poc/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

2) Improper Privilege Management

EUVDB-ID: #VU82295

Risk: High

CVSSv4.0: 8.5 [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:A/U:Amber]

CVE-ID: CVE-2023-20273

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper privilege management in the web UI feature. A remote non-authenticated attacker can send a specially crafted HTTP request to the affected device and create an account with privilege level 15 access.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco IOS XE: before

CPE2.3 External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j...


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?

Yes. This vulnerability is being exploited in the wild.



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