CVE-2017-12331

Severity Score

6.7

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software patch. The vulnerability is due to insufficient NX-OS signature verification for software patches. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software patch on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf16494, CSCvf23655.

Una vulnerabilidad en Cisco NX-OS System Software podría permitir a un atacante local autenticado omitir la verificación de firmas cuando se carga un parche de software. La vulnerabilidad se debe a una verificación de firmas NX-OS insuficiente para parches de software. Un atacante local autenticado podría explotar esta vulnerabilidad para omitir la verificación de firmas y cargar un parche de software manipulado y sin firma en un dispositivo objetivo. El atacante necesitaría credenciales de administrador válidas para explotar esta vulnerabilidad. Esta vulnerabilidad afecta a los siguientes productos que ejecutan Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches y Unified Computing System Manager. Cisco Bug IDs: CSCvf16494, CSCvf23655.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* 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
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-347: Improper Verification of Cryptographic Signature

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/102159	Vdb Entry
http://www.securitytracker.com/id/1039930	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos	2017-12-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Nx-os Search vendor "Cisco" for product "Nx-os"				8.1\(1\) Search vendor "Cisco" for product "Nx-os" and version "8.1\(1\)"		-		Affected
Cisco Search vendor "Cisco"		Unified Computing System Search vendor "Cisco" for product "Unified Computing System"				7.0\(0\)hsk\(0.357\) Search vendor "Cisco" for product "Unified Computing System" and version "7.0\(0\)hsk\(0.357\)"		-		Affected