Cisco IOS XE 9000 CAPWAP resource control

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k1.12

Summaryinfo

A vulnerability classified as problematic was found in Cisco IOS XE 9000. Impacted is an unknown function of the component CAPWAP Handler. Executing a manipulation can lead to resource control. This vulnerability appears as CVE-2022-20856. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Cisco IOS XE 9000 (Router Operating System) and classified as problematic. This vulnerability affects an unknown function of the component CAPWAP Handler. The manipulation with an unknown input leads to a resource control vulnerability. The CWE definition for the vulnerability is CWE-664. The product does not maintain or incorrectly maintains control over a resource throughout its lifetime of creation, use, and release. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a logic error and improper management of resources related to the handling of CAPWAP Mobility messages. An attacker could exploit this vulnerability by sending crafted CAPWAP Mobility packets to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device. This would cause the device to reload, resulting in a DoS condition.

The weakness was presented 10/01/2022 as cisco-sa-c9800-mob-dos-342YAc6J. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2022-20856 since 11/02/2021. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource control
CWE: CWE-664
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/02/2021 🔍
10/01/2022 +332 days 🔍
10/01/2022 +0 days 🔍
10/29/2022 +28 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-c9800-mob-dos-342YAc6J
Status: Confirmed

CVE: CVE-2022-20856 (🔍)
GCVE (CVE): GCVE-0-2022-20856
GCVE (VulDB): GCVE-100-210028
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 10/01/2022 08:33
Updated: 10/29/2022 09:05
Changes: 10/01/2022 08:33 (51), 10/29/2022 09:05 (11)
Complete: 🔍
Cache ID: 216::103

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