QID 150739

Date Published: 2023-11-28

QID 150739: Cisco IOS XE Web UI Privilege Escalation Vulnerability (CVE-2023-20198)

Cisco IOS XE is a network operating system (OS) developed by Cisco Systems for enterprise switching, routing, wired and wireless access.

A privilege escalation vulnerability exists in the web user interface of Cisco IOS XE allowing a remote, unauthenticated attacker to create an account with privilege level 15 access.

Affected Products:
Cisco IOS XE from 16.12 up to 16.12.10a
Cisco IOS XE from 17.3 up to 17.3.8a
Cisco IOS XE from 17.6 up to 17.6.6a
Cisco IOS XE from 17.9 up to 17.9.4a

QID Detection Logic (Unauthenticated):
This QID sends HTTP POST request to "%2577eb%2575i_%2577sma_Http" endpoint with specially crafted payload executing system commands and based on the response determines if the Cisco IOS XE software is vulnerable.

Successful exploitation of this vulnerability could allow a remote unauthenticated attacker to create an account with privilege level 15 access. The attacker can then use that account to gain control of the affected device.

CVSS V3 rated as Critical - 10 severity.

CVSS V2 rated as Critical - 10 severity.

Solution

Cisco has released fixes to address CVE-2023-20198, Customers are advised to refer Software Fix Availability document for detailed information. For more information pertaining to this vulnerability please refer Cisco Security Advisory.

Vendor References

Cisco Security Advisory - sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z

CVEs related to QID 150739

CVE-2023-20198 |

Software Advisories

Advisory ID	Software	Component	Link
Cisco Security Advisory			sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z

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