CVE-2024-20327
Severity Score
7.4
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A vulnerability in the PPP over Ethernet (PPPoE) termination feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to crash the ppp_ma process, resulting in a denial of service (DoS) condition.
This vulnerability is due to the improper handling of malformed PPPoE packets that are received on a router that is running Broadband Network Gateway (BNG) functionality with PPPoE termination on a Lightspeed-based or Lightspeed-Plus-based line card. An attacker could exploit this vulnerability by sending a crafted PPPoE packet to an affected line card interface that does not terminate PPPoE. A successful exploit could allow the attacker to crash the ppp_ma process, resulting in a DoS condition for PPPoE traffic across the router.
Una vulnerabilidad en la función de terminación de PPP sobre Ethernet (PPPoE) del software Cisco IOS XR para los enrutadores de servicios de agregación Cisco ASR serie 9000 podría permitir que un atacante adyacente no autenticado bloquee el proceso ppp_ma, lo que resultaría en una condición de denegación de servicio (DoS). Esta vulnerabilidad se debe al manejo inadecuado de paquetes PPPoE con formato incorrecto que se reciben en un enrutador que ejecuta la funcionalidad Broadband Network Gateway (BNG) con terminación PPPoE en una tarjeta de línea basada en Lightspeed o Lightspeed-Plus. Un atacante podría aprovechar esta vulnerabilidad enviando un paquete PPPoE manipulado a una interfaz de tarjeta de línea afectada que no termine PPPoE. Un exploit exitoso podría permitir al atacante bloquear el proceso ppp_ma, lo que resultaría en una condición DoS para el tráfico PPPoE a través del enrutador.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-11-08 CVE Reserved
- 2024-03-13 CVE Published
- 2024-03-14 EPSS Updated
- 2024-08-01 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pppma-JKWFgneW |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.2.0 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.2.0" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.2.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.2.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.2.4 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.2.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.3.0 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.3.0" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.3.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.3.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.3.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.3.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.3.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.3.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 5.3.4 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "5.3.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.0.0 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.0.0" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.0.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.0.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.0.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.0.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.1.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.1.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.1.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.1.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.1.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.1.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.1.4 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.1.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.2.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.2.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.2.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.2.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.2.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.2.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.2.25 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.2.25" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.3.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.3.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.3.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.3.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.4.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.4.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.4.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.4.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.5.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.5.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.5.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.5.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.5.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.5.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.6.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.6.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.6.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.6.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.6.25 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.6.25" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.0.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.0.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.0.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.0.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.1.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.1.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.1.15 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.1.15" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.1.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.1.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.1.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.1.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.7.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.7.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.7.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.7.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.7.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.7.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.3.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.3.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.3.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.3.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.3.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.3.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.3.5 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.3.5" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.4.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.4.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.4.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.4.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.8.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.8.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.8.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.8.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.5.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.5.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.5.3 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.5.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.5.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.5.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.5.4 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.5.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.5.5 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.5.5" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.6.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.6.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.6.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.6.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.7.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.7.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.7.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.7.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.9.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.9.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 6.9.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "6.9.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.8.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.8.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.8.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.8.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.9.1 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.9.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco IOS XR Software Search vendor "Cisco" for product "Cisco IOS XR Software" | 7.9.2 Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.9.2" | en |
Affected
| ||||||