CVE-2017-12355

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause one of the LPTS processes on an affected system to restart unexpectedly, resulting in a brief denial of service (DoS) condition. The vulnerability is due to incomplete LPTS frame validation by the affected software. An attacker could exploit this vulnerability by sending crafted XML requests to the management interface of an affected system. A successful exploit could allow the attacker to cause one of the LPTS processes on the affected system to restart unexpectedly, which would impact LPTS traffic and cause a brief DoS condition while the process restarts. Cisco Bug IDs: CSCvf76332.

Una vulnerabilidad en la característica de procesamiento de frames de entrada Local Packet Transport Services (LPTS) de Cisco IOS XR Software podría permitir que un atacante remoto no autenticado haga que uno de los procesos LPTS en un sistema afectado se reinicie de forma inesperada. Esto resulta en una breve condición de denegación de servicio (DoS). Esta vulnerabilidad también se debe a la validación incompleta de frames LPTS por parte del software afectado. Un atacante podría explotar esta vulnerabilidad enviando peticiones XML manipuladas a la interfaz de gestión de un sistema afectado. Un exploit con éxito podría permitir que el atacante provoque que uno de los procesos LPTS en el sistema afectado se reinicie inesperadamente, lo que impactaría el tráfico LPTS y provocaría una breve condición de DoS mientras se reinicia el proceso. Cisco Bug IDs: CSCvf76332.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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
2017-11-30 CVE Published
2023-06-02 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-399: Resource Management Errors

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/101989	Third Party Advisory
http://www.securitytracker.com/id/1039927	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xr	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"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				6.4.1_base Search vendor "Cisco" for product "Ios Xr" and version "6.4.1_base"		-		Affected