Cisco IOS XE up to 17.13.1a Access Control authorization

Summaryinfo

A vulnerability was found in Cisco IOS XE and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Access Control Module. Such manipulation leads to authorization. This vulnerability is traded as CVE-2025-20214. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS XE. It has been rated as problematic. Affected by this issue is an unknown code of the component Access Control Module. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality. CVE summarizes:

A vulnerability in the Network Configuration Access Control Module (NACM) of Cisco IOS XE Software could allow an authenticated, remote attacker to obtain unauthorized read access to configuration or operational data. This vulnerability exists because a subtle change in inner API call behavior causes results to be filtered incorrectly. An attacker could exploit this vulnerability by using either NETCONF, RESTCONF, or gRPC Network Management Interface (gNMI) protocols and query data on paths that may have been denied by the NACM configuration. A successful exploit could allow the attacker to access data that should have been restricted according to the NACM configuration. Note: This vulnerability requires that the attacker obtain the credentials from a valid user with privileges lower than 15, and that NACM was configured to provide restricted read access for that user.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2025-20214 since 10/10/2024. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/05/2025).

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS XE

Version

• 17.11.1
• 17.11.1a
• 17.11.99SW
• 17.12.1
• 17.12.1a
• 17.12.1w
• 17.12.1x
• 17.12.1y
• 17.12.1z
• 17.12.1z1
• 17.12.2
• 17.12.2a
• 17.13.1
• 17.13.1a

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

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