// For flags

CVE-2018-0117

 

Severity Score

8.6
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the ingress packet processing functionality of the Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software could allow an unauthenticated, remote attacker to cause both control function (CF) instances on an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient handling of user-supplied data by the affected software. An attacker could exploit this vulnerability by sending malicious traffic to the internal distributed instance (DI) network address on an affected system. A successful exploit could allow the attacker to cause an unhandled error condition on the affected system, which would cause the CF instances to reload and consequently cause the entire VPC to reload, resulting in the disconnection of all subscribers and a DoS condition on the affected system. This vulnerability affects Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software N4.0 through N5.5 with the Cisco StarOS operating system 19.2 through 21.3. Cisco Bug IDs: CSCve17656.

Una vulnerabilidad en la funcionalidad de procesado de paquetes de entrada de Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software podría permitir que un atacante remoto no autenticado provoque que ambas instancias de función de control (CF) en un sistema afectado se reinicien, lo que desemboca en una condición de denegación de servicio (DoS). La vulnerabilidad se debe a la manipulación insuficiente de datos de parte del usuario por parte del software afectado. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico malicioso a la dirección de red de la instancia distribuida (DI) interna en un sistema afectado. Un exploit con éxito podría permitir que el atacante provoque una condición de error en el sistema afectado, lo que podría causar que las instancias CF se recarguen y hagan que el VPC entero se recargue, lo que desemboca en la desconexión de todos los suscriptores y una condición DoS en el sistema afectado. La vulnerabilidad afecta a Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software N4.0 hasta N5.5 con el sistema operativo Cisco StarOS en versiones 19.2 hasta la 21.3. Cisco Bug IDs: CSCve17656.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-11-27 CVE Reserved
  • 2018-02-08 CVE Published
  • 2023-12-19 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"
Asr 5000 Firmware
Search vendor "Cisco" for product "Asr 5000 Firmware"
21.1.v0.66836
Search vendor "Cisco" for product "Asr 5000 Firmware" and version "21.1.v0.66836"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5000 Firmware
Search vendor "Cisco" for product "Asr 5000 Firmware"
21.1.v7
Search vendor "Cisco" for product "Asr 5000 Firmware" and version "21.1.v7"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5000 Firmware
Search vendor "Cisco" for product "Asr 5000 Firmware"
21.3.0
Search vendor "Cisco" for product "Asr 5000 Firmware" and version "21.3.0"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5000 Firmware
Search vendor "Cisco" for product "Asr 5000 Firmware"
21.6.0
Search vendor "Cisco" for product "Asr 5000 Firmware" and version "21.6.0"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5000
Search vendor "Cisco" for product "Asr 5000"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5500 Firmware
Search vendor "Cisco" for product "Asr 5500 Firmware"
21.1.v0.66836
Search vendor "Cisco" for product "Asr 5500 Firmware" and version "21.1.v0.66836"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5500 Firmware
Search vendor "Cisco" for product "Asr 5500 Firmware"
21.1.v7
Search vendor "Cisco" for product "Asr 5500 Firmware" and version "21.1.v7"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5500 Firmware
Search vendor "Cisco" for product "Asr 5500 Firmware"
21.3.0
Search vendor "Cisco" for product "Asr 5500 Firmware" and version "21.3.0"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe
Cisco
Search vendor "Cisco"
Asr 5500 Firmware
Search vendor "Cisco" for product "Asr 5500 Firmware"
21.6.0
Search vendor "Cisco" for product "Asr 5500 Firmware" and version "21.6.0"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 5500
Search vendor "Cisco" for product "Asr 5500"
--
Safe