CVE-2019-15261
Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal process of the targeted AP to crash, which in turn would cause the AP to reload. The AP reload would cause a DoS condition for clients that are associated with the AP.
Una vulnerabilidad en la funcionalidad de procesamiento de paquetes Point-to-Point Tunneling Protocol (PPTP) VPN en Cisco Aironet Access Points (APs), podría permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). La vulnerabilidad es debido a una comprobación insuficiente de las tramas Generic Routing Encapsulation (GRE) que pasan por medio del plano de datos de un AP afectado. Un atacante podría explotar esta vulnerabilidad al asociarse en un AP vulnerable, iniciar una conexión VPN PPTP a un servidor VPN PPTP arbitrario y enviar una trama GRE maliciosa por medio del plano de datos del AP. Una explotación con éxito podría permitir al atacante causar que un proceso interno del AP objetivo se bloquee, lo que a su vez causaría que el AP se recargue. La recarga AP provocaría una condición DoS para los clientes que están asociados con el AP.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-08-20 CVE Reserved
- 2019-10-16 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
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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" | Aironet 1810 Firmware Search vendor "Cisco" for product "Aironet 1810 Firmware" | >= 8.4 < 8.5.151.0 Search vendor "Cisco" for product "Aironet 1810 Firmware" and version " >= 8.4 < 8.5.151.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1810 Search vendor "Cisco" for product "Aironet 1810" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1810 Firmware Search vendor "Cisco" for product "Aironet 1810 Firmware" | >= 8.8 < 8.8.125.0 Search vendor "Cisco" for product "Aironet 1810 Firmware" and version " >= 8.8 < 8.8.125.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1810 Search vendor "Cisco" for product "Aironet 1810" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1810 Firmware Search vendor "Cisco" for product "Aironet 1810 Firmware" | >= 8.9 < 8.9.111.0 Search vendor "Cisco" for product "Aironet 1810 Firmware" and version " >= 8.9 < 8.9.111.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1810 Search vendor "Cisco" for product "Aironet 1810" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1830 Firmware Search vendor "Cisco" for product "Aironet 1830 Firmware" | >= 8.4 < 8.5.151.0 Search vendor "Cisco" for product "Aironet 1830 Firmware" and version " >= 8.4 < 8.5.151.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1830 Search vendor "Cisco" for product "Aironet 1830" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1830 Firmware Search vendor "Cisco" for product "Aironet 1830 Firmware" | >= 8.8 < 8.8.125.0 Search vendor "Cisco" for product "Aironet 1830 Firmware" and version " >= 8.8 < 8.8.125.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1830 Search vendor "Cisco" for product "Aironet 1830" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1830 Firmware Search vendor "Cisco" for product "Aironet 1830 Firmware" | >= 8.9 < 8.9.111.0 Search vendor "Cisco" for product "Aironet 1830 Firmware" and version " >= 8.9 < 8.9.111.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1830 Search vendor "Cisco" for product "Aironet 1830" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1850 Firmware Search vendor "Cisco" for product "Aironet 1850 Firmware" | >= 8.4 < 8.5.151.0 Search vendor "Cisco" for product "Aironet 1850 Firmware" and version " >= 8.4 < 8.5.151.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1850 Search vendor "Cisco" for product "Aironet 1850" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1850 Firmware Search vendor "Cisco" for product "Aironet 1850 Firmware" | >= 8.8 < 8.8.125.0 Search vendor "Cisco" for product "Aironet 1850 Firmware" and version " >= 8.8 < 8.8.125.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1850 Search vendor "Cisco" for product "Aironet 1850" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Aironet 1850 Firmware Search vendor "Cisco" for product "Aironet 1850 Firmware" | >= 8.9 < 8.9.111.0 Search vendor "Cisco" for product "Aironet 1850 Firmware" and version " >= 8.9 < 8.9.111.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Aironet 1850 Search vendor "Cisco" for product "Aironet 1850" | - | - |
Safe
|