CVE-2019-1683

Cisco SPA112, SPA525, and SPA5x5 Series IP Phones Certificate Validation Vulnerability

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability in the certificate handling component of the Cisco SPA112, SPA525, and SPA5X5 Series IP Phones could allow an unauthenticated, remote attacker to listen to or control some aspects of a Transport Level Security (TLS)-encrypted Session Initiation Protocol (SIP) conversation. The vulnerability is due to the improper validation of server certificates. An attacker could exploit this vulnerability by crafting a malicious server certificate to present to the client. An exploit could allow an attacker to eavesdrop on TLS-encrypted traffic and potentially route or redirect calls initiated by an affected device. Affected software include version 7.6.2 of the Cisco Small Business SPA525 Series IP Phones and Cisco Small Business SPA5X5 Series IP Phones and version 1.4.2 of the Cisco Small Business SPA500 Series IP Phones and Cisco Small Business SPA112 Series IP Phones.

Una vulnerabilidad en el componente de manejo de certificados de los teléfonos IP de Cisco SPA112, SPA525 y SPA5X5 podría permitir que un atacante remoto no autenticado escuche o controle algunos aspectos de una conversación SIP (Session Initiation Protocol) cifrada por TLS (Transport Level Security). Esta vulnerabilidad se debe a la validación incorrecta de los certificados del servidor. Un atacante podría explotar esta vulnerabilidad mediante la manipulación de un certificado de servidor malicioso para presentarlo al cliente. Su explotación podría permitir que un atacante espíe el tráfico cifrado por TLS y pueda enrutar o redirigir llamadas iniciadas por un dispositivo afectado. Las versiones afectadas incluyen la 7.6.2 de Cisco Small Business SPA525 Series IP Phones y Cisco Small Business SPA5X5 Series IP Phones, así como la versión 1.4.2 de Cisco Small Business SPA500 Series IP Phones y Cisco Small Business SPA112 Series IP Phones.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2018-12-06 CVE Reserved
2019-02-25 CVE Published
2024-07-13 EPSS Updated
2024-11-21 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/107111	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-ipphone-certs	2023-03-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Spa112 Firmware Search vendor "Cisco" for product "Spa112 Firmware"	1.4.2 Search vendor "Cisco" for product "Spa112 Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa112 Search vendor "Cisco" for product "Spa112"	-	-	Safe
Cisco Search vendor "Cisco"	Spa525 Firmware Search vendor "Cisco" for product "Spa525 Firmware"	7.6.2 Search vendor "Cisco" for product "Spa525 Firmware" and version "7.6.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa525 Search vendor "Cisco" for product "Spa525"	-	-	Safe
Cisco Search vendor "Cisco"	Spa5x5 Firmware Search vendor "Cisco" for product "Spa5x5 Firmware"	7.6.2 Search vendor "Cisco" for product "Spa5x5 Firmware" and version "7.6.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa5x5 Search vendor "Cisco" for product "Spa5x5"	-	-	Safe
Cisco Search vendor "Cisco"	Spa500 Firmware Search vendor "Cisco" for product "Spa500 Firmware"	1.4.2 Search vendor "Cisco" for product "Spa500 Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa500 Search vendor "Cisco" for product "Spa500"	-	-	Safe
Cisco Search vendor "Cisco"	Spa500s Firmware Search vendor "Cisco" for product "Spa500s Firmware"	1.4.2 Search vendor "Cisco" for product "Spa500s Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa500s Search vendor "Cisco" for product "Spa500s"	-	-	Safe
Cisco Search vendor "Cisco"	Spa500ds Firmware Search vendor "Cisco" for product "Spa500ds Firmware"	1.4.2 Search vendor "Cisco" for product "Spa500ds Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa500ds Search vendor "Cisco" for product "Spa500ds"	-	-	Safe
Cisco Search vendor "Cisco"	Spa501g Firmware Search vendor "Cisco" for product "Spa501g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa501g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa501g Search vendor "Cisco" for product "Spa501g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa502g Firmware Search vendor "Cisco" for product "Spa502g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa502g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa502g Search vendor "Cisco" for product "Spa502g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa504g Firmware Search vendor "Cisco" for product "Spa504g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa504g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa504g Search vendor "Cisco" for product "Spa504g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa508g Firmware Search vendor "Cisco" for product "Spa508g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa508g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa508g Search vendor "Cisco" for product "Spa508g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa509g Firmware Search vendor "Cisco" for product "Spa509g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa509g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa509g Search vendor "Cisco" for product "Spa509g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa512g Firmware Search vendor "Cisco" for product "Spa512g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa512g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa512g Search vendor "Cisco" for product "Spa512g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa514g Firmware Search vendor "Cisco" for product "Spa514g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa514g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa514g Search vendor "Cisco" for product "Spa514g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa525g Firmware Search vendor "Cisco" for product "Spa525g Firmware"	1.4.2 Search vendor "Cisco" for product "Spa525g Firmware" and version "1.4.2"	-	Affected	in	Cisco Search vendor "Cisco"	Spa525g Search vendor "Cisco" for product "Spa525g"	-	-	Safe