CVE-2017-12306 Information

Description

A vulnerability in the upgrade process of Cisco Spark Board could allow an authenticated local attacker to install an unverified upgrade package aka Signature Verification Bypass. The vulnerability is due to insufficient upgrade package validation. An attacker could exploit this vulnerability by providing the upgrade process with an upgrade package that the attacker controls. An exploit could allow the attacker to install custom firmware to the Spark Board. Cisco Bug IDs: CSCvf84502.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/101914 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-spark

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

4.4