CVE-2020-3396

CVSS V2 Medium 6.9 CVSS V3 High 7.2
Description
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 attacker 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 attacker to remove container protections and perform file actions outside the namespace of the container with root privileges.
Overview
  • CVE ID
  • CVE-2020-3396
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-09-24T18:15:17
  • Last Modified Date
  • 2020-10-15T18:05:10
Weakness Enumerations
CWE URL
CWE-269 http://cwe.mitre.org/data/definitions/269.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:asr_1023:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-24p:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-24s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-24t:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-24u:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-24ux:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48p:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48t:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48u:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48un:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300-48uxm:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-24p-4g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-24p-4x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-24t-4g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-24t-4x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-48p-4g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-48p-4x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-48t-4g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9300l-48t-4x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9404r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9407r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9410r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-12q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-16x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-24q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-24y4c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-32c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-32qc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-40x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_c9500-48y4c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:csr1000v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100-4g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100-4gltegb:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100-4gltena:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100-6g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr1100-lte:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4321\/k9:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4321\/k9-rf:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4321\/k9-ws:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4331\/k9:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4331\/k9-rf:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4331\/k9-ws:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4351\/k9:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4351\/k9-rf:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:isr4351\/k9-ws:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • PHYSICAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 0.5
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-usb-guestshell-WmevScDj Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-3396
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3396
History
Created Old Value New Value Data Type Notes
2022-05-10 17:08:01 Added to TrackCVE
2022-12-04 23:16:34 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-04 23:16:34 2020-09-24T18:15Z 2020-09-24T18:15:17 CVE Published Date updated
2022-12-04 23:16:34 2020-10-15T18:05:10 CVE Modified Date updated
2022-12-04 23:16:34 Analyzed Vulnerability Status updated