CVE-2022-20856

2022-09-3019:15:13

CWE-664

cisco

web.nvd.nist.gov

cve-2022-20856

cisco

ios

wireless controller

capwap

dos

vulnerability

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.001

Percentile

45.3%

JSON

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.

Affected configurations

Nvd

Node

ciscoios_xeMatch17.3.4c

AND

ciscocatalyst_9800Match-

ciscocatalyst_9800-40Match-

ciscocatalyst_9800-80Match-

ciscocatalyst_9800-clMatch-

ciscocatalyst_9800-lMatch-

ciscocatalyst_9800-l-cMatch-

ciscocatalyst_9800-l-fMatch-

VendorProductVersionCPE
ciscoios_xe17.3.4ccpe:2.3:o:cisco:ios_xe:17.3.4c:*:*:*:*:*:*:*
ciscocatalyst_9800-cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:*
ciscocatalyst_9800-40-cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*
ciscocatalyst_9800-80-cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*
ciscocatalyst_9800-cl-cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-c-cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-f-cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios_xe	17.3.4c	cpe:2.3:o:cisco:ios_xe:17.3.4c:::::::*
cisco	catalyst_9800	-	cpe:2.3:h:cisco:catalyst_9800:-:::::::*
cisco	catalyst_9800-40	-	cpe:2.3:h:cisco:catalyst_9800-40:-:::::::*
cisco	catalyst_9800-80	-	cpe:2.3:h:cisco:catalyst_9800-80:-:::::::*
cisco	catalyst_9800-cl	-	cpe:2.3:h:cisco:catalyst_9800-cl:-:::::::*
cisco	catalyst_9800-l	-	cpe:2.3:h:cisco:catalyst_9800-l:-:::::::*
cisco	catalyst_9800-l-c	-	cpe:2.3:h:cisco:catalyst_9800-l-c:-:::::::*
cisco	catalyst_9800-l-f	-	cpe:2.3:h:cisco:catalyst_9800-l-f:-:::::::*

CNA Affected

[
  {
    "product": "Cisco IOS XE Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]