CVE-2020-3422
Cisco IOS XE Software IP Service Level Agreements Denial of Service Vulnerability
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
A vulnerability in the IP Service Level Agreement (SLA) responder feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the IP SLA responder to reuse an existing port, resulting in a denial of service (DoS) condition. The vulnerability exists because the IP SLA responder could consume a port that could be used by another feature. An attacker could exploit this vulnerability by sending specific IP SLA control packets to the IP SLA responder on an affected device. The control packets must include the port number that could be used by another configured feature. A successful exploit could allow the attacker to cause an in-use port to be consumed by the IP SLA responder, impacting the feature that was using the port and resulting in a DoS condition.
Una vulnerabilidad en la funcionalidad de respuesta de Service Level Agreement (SLA) de IP de Cisco IOS XE Software, podría permitir a un atacante remoto no autenticado causar que el que responde el SLA de IP reutilice un puerto existente, resultando en una condición de denegación de servicio (DoS). La vulnerabilidad se presenta porque el que responde el SLA de IP podría consumir un puerto que podría ser usado por otra funcionalidad. Un atacante podría explotar esta vulnerabilidad mediante el envío de paquetes de control de SLA de IP específicos hacia el que responde de SLA de IP en un dispositivo afectado. Los paquetes de control deben incluir el número de puerto que podría ser usado por otra funcionalidad configurada. Una explotación con éxito podría permitir al atacante causar que un puerto en uso sea consumido por el que responde el SLA de IP, impactando la funcionalidad que estaba usando el puerto y resultando en una condición DoS.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-12-12 CVE Reserved
- 2020-09-24 CVE Published
- 2023-06-10 EPSS Updated
- 2024-11-13 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-371: State Issues
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipsla-jw2DJmSv | 2023-05-22 |
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" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1100 Integrated Services Router Search vendor "Cisco" for product "1100 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1101 Integrated Services Router Search vendor "Cisco" for product "1101 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1109 Integrated Services Router Search vendor "Cisco" for product "1109 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1111x Integrated Services Router Search vendor "Cisco" for product "1111x Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 111x Integrated Services Router Search vendor "Cisco" for product "111x Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1120 Integrated Services Router Search vendor "Cisco" for product "1120 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 1160 Integrated Services Router Search vendor "Cisco" for product "1160 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 4221 Integrated Services Router Search vendor "Cisco" for product "4221 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 4331 Integrated Services Router Search vendor "Cisco" for product "4331 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 4431 Integrated Services Router Search vendor "Cisco" for product "4431 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | 4461 Integrated Services Router Search vendor "Cisco" for product "4461 Integrated Services Router" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1001-hx Search vendor "Cisco" for product "Asr 1001-hx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1001-x Search vendor "Cisco" for product "Asr 1001-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1002-hx Search vendor "Cisco" for product "Asr 1002-hx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1002-x Search vendor "Cisco" for product "Asr 1002-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1004 Search vendor "Cisco" for product "Asr 1004" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1006 Search vendor "Cisco" for product "Asr 1006" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1006-x Search vendor "Cisco" for product "Asr 1006-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1009-x Search vendor "Cisco" for product "Asr 1009-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 1013 Search vendor "Cisco" for product "Asr 1013" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 3650 Search vendor "Cisco" for product "Catalyst 3650" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 3850 Search vendor "Cisco" for product "Catalyst 3850" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9200 Search vendor "Cisco" for product "Catalyst 9200" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9300 Search vendor "Cisco" for product "Catalyst 9300" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9400 Search vendor "Cisco" for product "Catalyst 9400" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9500 Search vendor "Cisco" for product "Catalyst 9500" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9600 Search vendor "Cisco" for product "Catalyst 9600" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Catalyst 9800 Search vendor "Cisco" for product "Catalyst 9800" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Ios Xe Search vendor "Cisco" for product "Ios Xe" | 16.9.3 Search vendor "Cisco" for product "Ios Xe" and version "16.9.3" | - |
Affected
| in | Cisco Search vendor "Cisco" | Csr 1000v Search vendor "Cisco" for product "Csr 1000v" | - | - |
Safe
|