CVE-2021-46559

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

The firmware on Moxa TN-5900 devices through 3.1 has a weak algorithm that allows an attacker to defeat an inspection mechanism for integrity protection.

Overview

CVE ID
CVE-2021-46559

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-01-26T02:15:07

Last Modified Date
2022-02-01T21:00:05

Weakness Enumerations

CWE	URL
CWE-327	http://cwe.mitre.org/data/definitions/327.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:moxa:tn-5900_firmware::::::::	1	OR		3.1
cpe:2.3:h:moxa:tn-5900:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.moxa.com/en/support/product-support/security-advisory/tn-5900-secure-routers-vulnerabilities	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-46559
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46559

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:34:52				Added to TrackCVE
2022-12-06 07:44:54	2022-01-26T02:15Z	2022-01-26T02:15:07	CVE Published Date	updated
2022-12-06 07:44:54		2022-02-01T21:00:05	CVE Modified Date	updated
2022-12-06 07:44:54		Analyzed	Vulnerability Status	updated