CVE-2019-1923

Cisco Small Business SPA500 Series IP Phones Local Command Execution Vulnerability

Severity Score

6.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device. The vulnerability is due to improper input validation in the device configuration interface. An attacker could exploit this vulnerability by accessing the configuration interface, which may require a password, and then accessing the device's physical interface and inserting a USB storage device. A successful exploit could allow the attacker to execute arbitrary commands on the device in an elevated security context. At the time of publication, this vulnerability affected Cisco Small Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and prior.

Una vulnerabilidad en los teléfonos IP Small Business SPA500 Series de Cisco podría permitir a un atacante físicamente próximo ejecutar comandos arbitrarios en el dispositivo. La vulnerabilidad es debido a una comprobación de entrada inapropiada en la interfaz de configuración del dispositivo. Un atacante podría explotar esta vulnerabilidad accediendo a la interfaz de configuración, que puede requerir una contraseña, y luego acceder a la interfaz física del dispositivo e insertar un dispositivo de almacenamiento USB. Una explotación con éxito podría permitir al atacante ejecutar comandos arbitrarios en el dispositivo en un contexto de seguridad elevado. Al momento de la publicación, esta vulnerabilidad afectó los teléfonos IP Small Business SPA500 Series de Cisco versiones de firmware 7.6.2SR5 y anteriores.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2018-12-06 CVE Reserved
2019-07-17 CVE Published
2023-03-08 EPSS Updated
2024-11-20 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/109294	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-spa500-command	2020-10-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Spa501g Firmware Search vendor "Cisco" for product "Spa501g Firmware"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa501g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa502g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa504g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa508g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa509g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa512g Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa514g Firmware" and version " <= 7.6.2sr5"	-	Affected	in	Cisco Search vendor "Cisco"	Spa514g Search vendor "Cisco" for product "Spa514g"	-	-	Safe
Cisco Search vendor "Cisco"	Spa525g2 Firmware Search vendor "Cisco" for product "Spa525g2 Firmware"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa525g2 Firmware" and version " <= 7.6.2sr5"	-	Affected	in	Cisco Search vendor "Cisco"	Spa525g2 Search vendor "Cisco" for product "Spa525g2"	-	-	Safe
Cisco Search vendor "Cisco"	Spa500s Firmware Search vendor "Cisco" for product "Spa500s Firmware"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa500s Firmware" and version " <= 7.6.2sr5"	-	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"	<= 7.6.2sr5 Search vendor "Cisco" for product "Spa500ds Firmware" and version " <= 7.6.2sr5"	-	Affected	in	Cisco Search vendor "Cisco"	Spa500ds Search vendor "Cisco" for product "Spa500ds"	-	-	Safe