CVE-2017-12259

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the implementation of Session Initiation Protocol (SIP) functionality in Cisco Small Business SPA51x Series IP Phones could allow an unauthenticated, remote attacker to cause an affected device to become unresponsive, resulting in a denial of service (DoS) condition. The vulnerability is due to the improper handling of SIP request messages by an affected device. An attacker could exploit this vulnerability by sending malformed SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to become unresponsive, resulting in a DoS condition that persists until the device is restarted manually. This vulnerability affects Cisco Small Business SPA51x Series IP Phones that are running Cisco SPA51x Firmware Release 7.6.2SR1 or earlier. Cisco Bug IDs: CSCvc63982.

Una vulnerabilidad en la implementación de la funcionalidad Session Initiation Protocol (SIP) en Cisco Small Business SPA51x Series IP Phones podría permitir que un atacante remoto sin autenticar haga que el dispositivo afectado no responda, lo que da como resultado una condición de denegación de servicio (DoS). Esta vulnerabilidad se debe a un manejo incorrecto de los mensajes de petición SIP por parte de un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad enviando mensajes SIP mal formados a un dispositivo afectado. Un exploit con éxito, podría permitir que el atacante consiga que el dispositivo afectado no responda, lo que da como resultado una condición de DoS que persista hasta que el dispositivo se reinicie manualmente. Esta vulnerabilidad afecta a Cisco Small Business SPA51x Series IP Phones que ejecuten la distribución 7.6.2SR1 o anterior del firmware Cisco SPA51x. Cisco Bug IDs: CSCvc63982.

*Credits: N/A

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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-03 CVE Reserved
2017-10-19 CVE Published
2023-04-21 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/101488	Third Party Advisory
http://www.securitytracker.com/id/1039615	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171018-sip	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Small Business Ip Phone Firmware Search vendor "Cisco" for product "Small Business Ip Phone Firmware"	<= 7.6.2 Search vendor "Cisco" for product "Small Business Ip Phone Firmware" and version " <= 7.6.2"	sr1	Affected	in	Cisco Search vendor "Cisco"	Small Business Ip Phone Search vendor "Cisco" for product "Small Business Ip Phone"	spa510 Search vendor "Cisco" for product "Small Business Ip Phone" and version "spa510"	-	Safe