CVE-2018-0123

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Path Traversal vulnerability in the diagnostic shell for Cisco IOS and IOS XE Software could allow an authenticated, local attacker to use certain diagnostic shell commands that can overwrite system files. These system files may be sensitive and should not be able to be overwritten by a user of the diagnostic shell. The vulnerability is due to lack of proper input validation for certain diagnostic shell commands. An attacker could exploit this vulnerability by authenticating to the device, entering the diagnostic shell, and providing crafted user input to commands at the local diagnostic shell CLI. Successful exploitation could allow the attacker to overwrite system files that should be restricted. Cisco Bug IDs: CSCvg41950.

Una vulnerabilidad de salto de directorio en el shell de diagnóstico en Cisco IOS e IOS XE Software podría permitir que un atacante local autenticado emplee ciertos comandos del shell de diagnostico que pueden sobrescribir archivos del sistema. Estos archivos del sistema podrían ser sensibles y no deberían poder ser sobrescritos por un usuario del shell de diagnóstico. La vulnerabilidad se debe a la falta de validación de entradas para ciertos comandos del shell de diagnóstico. Un atacante podría explotar esta vulnerabilidad autenticándose en el dispositivo, entrando en el shell de diagnóstico y proporcionando entradas de usuario manipuladas en la interfaz de línea de comandos del shell de diagnóstico local. La explotación con éxito podría permitir que el atacante sobrescriba archivos del sistema que deberían estar restringidos. Cisco Bug IDs: CSCvg41950.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-02-08 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/102967	Third Party Advisory
http://www.securitytracker.com/id/1040346	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-ios	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 Search vendor "Cisco" for product "Ios"				16.7\(1\) Search vendor "Cisco" for product "Ios" and version "16.7\(1\)"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				-		-		Affected