CVE-2021-20649

CVSS V2 Medium 5.8 CVSS V3 Medium 4.8

Description

ELECOM WRC-300FEBK-S contains an improper certificate validation vulnerability. Via a man-in-the-middle attack, an attacker may alter the communication response. As a result, an arbitrary OS command may be executed on the affected device.

Overview

CVE ID
CVE-2021-20649

Assigner
vultures@jpcert.or.jp

Vulnerability Status
Analyzed

Published Version
2021-02-12T07:15:15

Last Modified Date
2021-02-15T01:26:09

Weakness Enumerations

CWE	URL
CWE-295	http://cwe.mitre.org/data/definitions/295.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:elecom:wrc-300febk-s_firmware:-:::::::*	1	OR
cpe:2.3:h:elecom:wrc-300febk-s:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
5.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
4.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
HIGH

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
4.8

Base Severity
MEDIUM

Exploitability Score
2.2

Impact Score
2.5

References

Reference URL	Reference Tags
https://www.elecom.co.jp/news/security/20210126-01/	Vendor Advisory
https://jvn.jp/en/jp/JVN47580234/index.html	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-20649
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20649

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:23:18				Added to TrackCVE
2022-12-05 22:03:35	2021-02-12T07:15Z	2021-02-12T07:15:15	CVE Published Date	updated
2022-12-05 22:03:35		2021-02-15T01:26:09	CVE Modified Date	updated
2022-12-05 22:03:35		Analyzed	Vulnerability Status	updated