Cisco IOS XE Control/Provisioning Packet input validation

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS XE. This vulnerability affects unknown code of the component Control/Provisioning. Executing a manipulation as part of Packet can lead to input validation. This vulnerability is registered as CVE-2020-3487. The attack requires access to the local network. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS XE (Router Operating System) (affected version unknown). It has been declared as problematic. This vulnerability affects an unknown functionality of the component Control/Provisioning. The manipulation as part of a Packet leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition of an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.

The weakness was published 09/24/2020 as cisco-sa-capwap-dos-TPdNTdyq as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2020-3487 since 12/12/2019. The attack can only be done within the local network. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

Similar entries are available at VDB-161889, VDB-161891, VDB-161892 and VDB-161894. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS XE

License

• commercial

Website

• Vendor: https://www.cisco.com/

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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