CVE-2021-1565

CVSS V2 Medium 5 CVSS V3 High 8.6
Description
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the 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.
Overview
  • CVE ID
  • CVE-2021-1565
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-23T03:15:11
  • Last Modified Date
  • 2021-10-07T02:48:13
Weakness Enumerations
CWE URL
CWE-415 http://cwe.mitre.org/data/definitions/415.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:a:cisco:embedded_wireless_controller:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:catalyst_9300-24p-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24p-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24s-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24s-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24t-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24t-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24u-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24u-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24ux-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-24ux-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48p-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48p-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48s-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48s-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48t-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48t-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48u-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48u-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48un-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48un-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48uxm-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300-48uxm-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24p-4g-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24p-4g-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24p-4x-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24p-4x-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24t-4g-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24t-4g-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24t-4x-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-24t-4x-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48p-4g-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48p-4g-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48p-4x-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48p-4x-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48t-4g-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48t-4g-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48t-4x-a:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l-48t-4x-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9300l_stack:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9400:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9400_supervisor_engine-1:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9407r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9410r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9500:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:catalyst_9800_firmware:17.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:catalyst_9800_firmware:17.5.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:catalyst_9800_firmware:17.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:catalyst_9800_firmware:17.5.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-gmNjdKOY Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1565
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1565
History
Created Old Value New Value Data Type Notes
2022-05-10 06:52:15 Added to TrackCVE
2022-12-05 11:07:23 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 11:07:23 2021-09-23T03:15Z 2021-09-23T03:15:11 CVE Published Date updated
2022-12-05 11:07:23 2021-10-07T02:48:13 CVE Modified Date updated
2022-12-05 11:07:23 Analyzed Vulnerability Status updated