CVE-2017-12331 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/102159 http://www.securitytracker.com/id/1039930 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7