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CVE-2020-8349 Detail

Description

An internal security review has identified an unauthenticated remote code execution vulnerability in Cloud Networking Operating System (CNOS)’ optional REST API management interface. This interface is disabled by default and not vulnerable unless enabled. When enabled, it is only vulnerable where attached to a VRF and as allowed by defined ACLs. Lenovo strongly recommends upgrading to a non-vulnerable CNOS release. Where not possible, Lenovo recommends disabling the REST API management interface or restricting access to the management VRF and further limiting access to authorized management stations via ACL.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA: Lenovo Group Ltd.

Base Score: 9.8 CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.8 MEDIUM

Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://support.lenovo.com/us/en/product_security/LEN-44423	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-94	Improper Control of Generation of Code ('Code Injection')	NIST
CWE-20	Improper Input Validation	Lenovo Group Ltd.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Initial Analysis by NIST 10/29/2020 3:52:24 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 684 characters. View Entire Change Record AND OR cpe:2.3:o:lenovo:cloud_networking_operating_system::::::::* versions up to (excluding) 10.10.6.0 OR cpe:2.3:h:lenovo:rackswitch_g8272:-:::::::* cpe:2.3:h:lenovo:rackswitch_g8296:-:::::::* cpe:2.3:h:lenovo:rackswitch_g8332:-:::::::* cpe:2.3:h:lenovo:rackswitch_ne0152t:-:::::::* cpe:2.3:h:lenovo:rackswitch_ne10032:-:::::::* cpe:2.3:h:lenovo:rackswitch_ne1032:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-94
Changed	Reference Type	https://support.lenovo.com/us/en/product_security/LEN-44423 No Types Assigned	https://support.lenovo.com/us/en/product_security/LEN-44423 Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2020-8349
NVD Published Date:
10/14/2020
NVD Last Modified:
10/29/2020
Source:
Lenovo Group Ltd.

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Information Technology Laboratory

National Vulnerability Database