// For flags

CVE-2019-1766

Cisco IP Phone 8800 Series File Upload 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 web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software does not restrict the maximum size of certain files that can be written to disk. An attacker who has valid administrator credentials for an affected system could exploit this vulnerability by sending a crafted, remote connection request to an affected system. A successful exploit could allow the attacker to write a file that consumes most of the available disk space on the system, causing application functions to operate abnormally and leading to a DoS condition. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 12.5(1)SR1.

Una vulnerabilidad en la interfaz de gestión web de Session Initiation Protocol (SIP) en los teléfonos Cisco IP 8800 Series podría permitir que un atacante remoto sin autenticar provoque un gran uso del disco, lo que da como resultado una condición de denegación de servicio (DoS). La vulnerabilidad existe debido a que el software afectado no restringe el tamaño máximo de ciertos archivos que pueden escribirse en el disco. Un atacante que tenga credenciales de administrador válidas para un sistema afectado podría explotar esta vulnerabilidad mediante el envío de una petición de conexión a un sistema afectado. Su explotación con éxito podría permitir que el atacante escriba un archivo que consume la mayor parte del espacio de disco disponible en el sistema, haciendo que las funciones de la aplicación operen de forma anormal y conduciendo a una denegación de servicio (DoS). Esta vulnerabilidad afecta a los productos Cisco IP Phone 8800 Series que ejecutan una distribución de SIP anterior a la 12.5(1)SR1.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-03-22 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-19 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"
 Ip Phone 8800 Firmware
Search vendor "Cisco" for product "Ip Phone 8800 Firmware"
 < 12.5\(1\)sr1
Search vendor "Cisco" for product "Ip Phone 8800 Firmware" and version " < 12.5\(1\)sr1"
-
Affected
in Cisco
Search vendor "Cisco"
 Ip Phone 8800
Search vendor "Cisco" for product "Ip Phone 8800"
--
Safe