// For flags

CVE-2017-3873

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Plug-and-Play (PnP) subsystem of the Cisco Aironet 1800, 2800, and 3800 Series Access Points running a Lightweight Access Point (AP) or Mobility Express image could allow an unauthenticated, adjacent attacker to execute arbitrary code with root privileges. The vulnerability is due to insufficient validation of PnP server responses. The PnP feature is only active while the device does not contain a configuration, such as a first time boot or after a factory reset has been issued. An attacker with the ability to respond to PnP configuration requests from the affected device can exploit the vulnerability by returning malicious PnP responses. If a Cisco Application Policy Infrastructure Controller - Enterprise Module (APIC-EM) is available on the network, the attacker would need to exploit the issue in the short window before a valid PnP response was received. If successful, the attacker could gain the ability to execute arbitrary code with root privileges on the underlying operating system of the device. Cisco has confirmed that the only vulnerable software version is 8.3.102.0. Cisco Bug IDs: CSCvb42386.

Una vulnerabilidad en el subsistema Plug-and-Play (PnP) de los Puntos de Acceso Aironet 1800, 2800, y 3800 Series de Cisco que ejecutan una imagen de Lightweight Access Point (AP) o Mobility Express, podría permitir que un atacante adyacente no autenticado ejecute código arbitrario con privilegios root. La vulnerabilidad es debido a la comprobación insuficiente de las respuestas del servidor PnP. La funcionalidad PnP solo está activa mientras que el dispositivo no contenga una configuración, como un arranque por primera vez o después de que se haya emitido un restablecimiento de fábrica. Un atacante con la capacidad de responder a las peticiones de configuración PnP desde el dispositivo afectado puede explotar la vulnerabilidad mediante la devolución de respuestas PnP maliciosas. Si un Application Policy Infrastructure Controller - Enterprise Module (APIC-EM) de Cisco está disponible en la red, el atacante necesitaría explotar el problema en la ventana corta antes de que se recibiera una respuesta válida PnP. Si tiene éxito, el atacante podría conseguir la capacidad de ejecutar código arbitrario con privilegios root en el sistema operativo subyacente del dispositivo. Cisco ha confirmado que la única versión de software vulnerable es 8.3.102.0. ID de bug de Cisco: CSCvb42386.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-12-21 CVE Reserved
  • 2017-05-16 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
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 Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 1830e
Search vendor "Cisco" for product "Aironet 1830e"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 1830i
Search vendor "Cisco" for product "Aironet 1830i"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 1850e
Search vendor "Cisco" for product "Aironet 1850e"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 1850i
Search vendor "Cisco" for product "Aironet 1850i"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 2800e
Search vendor "Cisco" for product "Aironet 2800e"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 2800i
Search vendor "Cisco" for product "Aironet 2800i"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 3800e
Search vendor "Cisco" for product "Aironet 3800e"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 3800i
Search vendor "Cisco" for product "Aironet 3800i"
--
Safe
Cisco
Search vendor "Cisco"
Aironet Access Point Firmware
Search vendor "Cisco" for product "Aironet Access Point Firmware"
8.3_102.0
Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.3_102.0"
-
Affected
in Cisco
Search vendor "Cisco"
Aironet 3800p
Search vendor "Cisco" for product "Aironet 3800p"
--
Safe