NVD

CVE-2021-20590 Detail

Description

Improper authentication vulnerability in GOT2000 series GT27 model VNC server versions 01.39.010 and prior, GOT2000 series GT25 model VNC server versions 01.39.010 and prior, GOT2000 series GT21 model GT2107-WTBD VNC server versions 01.40.000 and prior, GOT2000 series GT21 model GT2107-WTSD VNC server versions 01.40.000 and prior, GOT SIMPLE series GS21 model GS2110-WTBD-N VNC server versions 01.40.000 and prior and GOT SIMPLE series GS21 model GS2107-WTBD-N VNC server versions 01.40.000 and prior allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 7.5 HIGH

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

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://jvn.jp/vu/JVNVU97615777/index.html	Mitigation Third Party Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf	Mitigation Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Modified Analysis by NIST 5/12/2022 4:15:46 PM

Action	Type	Old Value	New Value
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware::::::::* versions up to (including) 01.39.010 OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware::::::::* versions up to (including) 01.39.010 OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware::::::::* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware::::::::* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware::::::::* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware::::::::* versions up to (including) 01.40.000 OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Removed	CVSS V2	NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Changed	Reference Type	https://jvn.jp/vu/JVNVU97615777/index.html Third Party Advisory	https://jvn.jp/vu/JVNVU97615777/index.html Mitigation, Third Party Advisory
Changed	Reference Type	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Vendor Advisory	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Mitigation, Vendor Advisory

Initial Analysis by NIST 5/04/2021 11:15:42 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:got2000_gt25_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:got2000_gt25:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:got2000_gt27_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:got2000_gt27:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gs2107-wtbd-n:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gs2110-wtbd-n:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gt2107-wtbd:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:gt2107-wtsd:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Added	CWE		NIST CWE-287
Changed	Reference Type	https://jvn.jp/vu/JVNVU97615777/index.html No Types Assigned	https://jvn.jp/vu/JVNVU97615777/index.html Third Party Advisory
Changed	Reference Type	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf No Types Assigned	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20590
NVD Published Date:
04/22/2021
NVD Last Modified:
05/12/2022
Source:
JPCERT/CC

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National Vulnerability Database