CVE-2022-20682
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
Severity Score
8.6
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of 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 inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.
Una vulnerabilidad en el procesamiento del protocolo de control y aprovisionamiento de puntos de acceso inalámbricos (CAPWAP) de Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una comprobación inapropiada de la entrada de paquetes CAPWAP entrantes que encapsulan consultas de DNS multidifusión (mDNS). Un atacante podría aprovechar esta vulnerabilidad al conectarse a una red inalámbrica y mediante el envío de una consulta mDNS diseñada, que fluiría y sería procesada por el controlador inalámbrico. Una explotación con éxito podría permitir al atacante causar a el dispositivo afectado bloquearse y se recargarse, resultando en una condición de DoS
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-11-02 CVE Reserved
- 2022-04-15 CVE Published
- 2023-11-06 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
- CWE-690: Unchecked Return Value to NULL Pointer Dereference
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 3.15.1xbs Search vendor "Cisco" for product "Ios Xe" and version "3.15.1xbs" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 3.15.2xbs Search vendor "Cisco" for product "Ios Xe" and version "3.15.2xbs" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.1 Search vendor "Cisco" for product "Ios Xe" and version "16.11.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.1a Search vendor "Cisco" for product "Ios Xe" and version "16.11.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.1b Search vendor "Cisco" for product "Ios Xe" and version "16.11.1b" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.1c Search vendor "Cisco" for product "Ios Xe" and version "16.11.1c" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.1s Search vendor "Cisco" for product "Ios Xe" and version "16.11.1s" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.11.2 Search vendor "Cisco" for product "Ios Xe" and version "16.11.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1a Search vendor "Cisco" for product "Ios Xe" and version "16.12.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1c Search vendor "Cisco" for product "Ios Xe" and version "16.12.1c" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1s Search vendor "Cisco" for product "Ios Xe" and version "16.12.1s" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1t Search vendor "Cisco" for product "Ios Xe" and version "16.12.1t" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1w Search vendor "Cisco" for product "Ios Xe" and version "16.12.1w" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1x Search vendor "Cisco" for product "Ios Xe" and version "16.12.1x" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1y Search vendor "Cisco" for product "Ios Xe" and version "16.12.1y" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1z Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1z1 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.1z2 Search vendor "Cisco" for product "Ios Xe" and version "16.12.1z2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.2 Search vendor "Cisco" for product "Ios Xe" and version "16.12.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.2a Search vendor "Cisco" for product "Ios Xe" and version "16.12.2a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.2s Search vendor "Cisco" for product "Ios Xe" and version "16.12.2s" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.2t Search vendor "Cisco" for product "Ios Xe" and version "16.12.2t" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.3 Search vendor "Cisco" for product "Ios Xe" and version "16.12.3" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.3a Search vendor "Cisco" for product "Ios Xe" and version "16.12.3a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.3s Search vendor "Cisco" for product "Ios Xe" and version "16.12.3s" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.4 Search vendor "Cisco" for product "Ios Xe" and version "16.12.4" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.4a Search vendor "Cisco" for product "Ios Xe" and version "16.12.4a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.5 Search vendor "Cisco" for product "Ios Xe" and version "16.12.5" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.5a Search vendor "Cisco" for product "Ios Xe" and version "16.12.5a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.5b Search vendor "Cisco" for product "Ios Xe" and version "16.12.5b" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.6 Search vendor "Cisco" for product "Ios Xe" and version "16.12.6" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.12.6a Search vendor "Cisco" for product "Ios Xe" and version "16.12.6a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.1 Search vendor "Cisco" for product "Ios Xe" and version "17.1.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.1a Search vendor "Cisco" for product "Ios Xe" and version "17.1.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.1s Search vendor "Cisco" for product "Ios Xe" and version "17.1.1s" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.1t Search vendor "Cisco" for product "Ios Xe" and version "17.1.1t" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.2 Search vendor "Cisco" for product "Ios Xe" and version "17.1.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.1.3 Search vendor "Cisco" for product "Ios Xe" and version "17.1.3" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.1 Search vendor "Cisco" for product "Ios Xe" and version "17.2.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.1a Search vendor "Cisco" for product "Ios Xe" and version "17.2.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.1r Search vendor "Cisco" for product "Ios Xe" and version "17.2.1r" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.1v Search vendor "Cisco" for product "Ios Xe" and version "17.2.1v" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.2 Search vendor "Cisco" for product "Ios Xe" and version "17.2.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.2.3 Search vendor "Cisco" for product "Ios Xe" and version "17.2.3" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.1 Search vendor "Cisco" for product "Ios Xe" and version "17.3.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.1a Search vendor "Cisco" for product "Ios Xe" and version "17.3.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.1w Search vendor "Cisco" for product "Ios Xe" and version "17.3.1w" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.1x Search vendor "Cisco" for product "Ios Xe" and version "17.3.1x" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.1z Search vendor "Cisco" for product "Ios Xe" and version "17.3.1z" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.2 Search vendor "Cisco" for product "Ios Xe" and version "17.3.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.2a Search vendor "Cisco" for product "Ios Xe" and version "17.3.2a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.3 Search vendor "Cisco" for product "Ios Xe" and version "17.3.3" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.3.3a Search vendor "Cisco" for product "Ios Xe" and version "17.3.3a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.1 Search vendor "Cisco" for product "Ios Xe" and version "17.4.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.1a Search vendor "Cisco" for product "Ios Xe" and version "17.4.1a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.1b Search vendor "Cisco" for product "Ios Xe" and version "17.4.1b" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.1c Search vendor "Cisco" for product "Ios Xe" and version "17.4.1c" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.2 Search vendor "Cisco" for product "Ios Xe" and version "17.4.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.4.2a Search vendor "Cisco" for product "Ios Xe" and version "17.4.2a" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.5.1 Search vendor "Cisco" for product "Ios Xe" and version "17.5.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 17.5.1a Search vendor "Cisco" for product "Ios Xe" and version "17.5.1a" | - |
Affected
| ||||||