6.9
CVSSv2

CVE-2020-3396

Published: 24/09/2020 Updated: 07/11/2023
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7.2 | Impact Score: 6 | Exploitability Score: 0.5
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

A vulnerability in the file system on the pluggable USB 3.0 Solid State Drive (SSD) for Cisco IOS XE Software could allow an authenticated, physical malicious user to remove the USB 3.0 SSD and modify sensitive areas of the file system, including the namespace container protections. The vulnerability occurs because the USB 3.0 SSD control data is not stored on the internal boot flash. An attacker could exploit this vulnerability by removing the USB 3.0 SSD, modifying or deleting files on the USB 3.0 SSD by using another device, and then reinserting the USB 3.0 SSD on the original device. A successful exploit could allow the malicious user to remove container protections and perform file actions outside the namespace of the container with root privileges.

Vulnerability Trend

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cisco ios_xe 16.12.1

Vendor Advisories

A vulnerability in the file system on the pluggable USB 30 Solid State Drive (SSD) for Cisco IOS XE Software could allow an authenticated, physical attacker to remove the USB 30 SSD and modify sensitive areas of the file system, including the namespace container protections The vulnerability occurs because the USB 30 SSD control data is not st ...