NVD Vulnerability Detail

CVE-2021-20601

Summary	Improper input validation vulnerability in GOT2000 series GT27 model all versions, GOT2000 series GT25 model all versions, GOT2000 series GT23 model all versions, GOT2000 series GT21 model all versions, GOT SIMPLE series GS21 model all versions, and GT SoftGOT2000 all versions allows an remote unauthenticated attacker to write a value that exceeds the configured input range limit by sending a malicious packet to rewrite the device value. As a result, the system operation may be affected, such as malfunction.
Publication Date	Nov. 24, 2021, 12:15 a.m.
Registration Date	Nov. 24, 2021, 10:01 a.m.
Last Update	Nov. 21, 2024, 2:46 p.m.

CVSS3.1 : HIGH
スコア	7.5
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	なし
完全性への影響(I)	高
可用性への影響(A)	なし

CVSS2.0 : HIGH
Score	7.8
Vector	AV:N/AC:L/Au:N/C:N/I:C/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	なし
完全性への影響(I)	高
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:mitsubishielectric:gt_softgot2000:-:::::::*

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got_simple_gs2110-wtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got_simple_gs2110-wtbd:-:::::::*

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got_simple_gs2107-wtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got_simple_gs2107-wtbd:-:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2104-rtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2104-rtbd:-:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2103-pmbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2103-pmbd:-:::::::*

Configuration6		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2103-pmbds_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2103-pmbds:-:::::::*

Configuration7		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2103-pmbds2_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2103-pmbds2:-:::::::*

Configuration8		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2103-pmbls_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2103-pmbls:-:::::::*

Configuration9		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2107-wtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2107-wtbd:-:::::::*

Configuration10		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2310-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2310-vtba:-:::::::*

Configuration11		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2310-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2310-vtbd:-:::::::*

Configuration12		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2308-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2308-vtbd:-:::::::*

Configuration13		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2308-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2308-vtba:-:::::::*

Configuration14		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2507t-wtsd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2507t-wtsd:-:::::::*

Configuration15		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2507-wtsd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2507-wtsd:-:::::::*

Configuration16		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2507-wtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2507-wtbd:-:::::::*

Configuration17		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2512-wxtsd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2512-wxtsd:-:::::::*

Configuration18		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-wxtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-wxtbd:-:::::::*

Configuration19		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-wxtsd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-wxtsd:-:::::::*

Configuration20		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2512-wxtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2512-wxtbd:-:::::::*

Configuration21		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2505hs-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2505hs-vtbd:-:::::::*

Configuration22		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2506hs-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2506hs-vtbd:-:::::::*

Configuration23		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2512-stba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2512-stba:-:::::::*

Configuration24		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2512-stbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2512-stbd:-:::::::*

Configuration25		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-vtba:-:::::::*

Configuration26		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-vtbd:-:::::::*

Configuration27		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-vtwa_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-vtwa:-:::::::*

Configuration28		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2510-vtwd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2510-vtwd:-:::::::*

Configuration29		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2508-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2508-vtba:-:::::::*

Configuration30		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2508-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2508-vtbd:-:::::::*

Configuration31		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2508-vtwa_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2508-vtwa:-:::::::*

Configuration32		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2508-vtwd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2508-vtwd:-:::::::*

Configuration33		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2505-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2505-vtbd:-:::::::*

Configuration34		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2705-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2705-vtbd:-:::::::*

Configuration35		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2708-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2708-vtbd:-:::::::*

Configuration36		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2708-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2708-vtba:-:::::::*

Configuration37		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2708-stba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2708-stba:-:::::::*

Configuration38		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2708-stbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2708-stbd:-:::::::*

Configuration39		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-stba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-stba:-:::::::*

Configuration40		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-stbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-stbd:-:::::::*

Configuration41		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-vtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-vtba:-:::::::*

Configuration42		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-vtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-vtbd:-:::::::*

Configuration43		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-vtwa_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-vtwa:-:::::::*

Configuration44		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2710-vtwd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2710-vtwd:-:::::::*

Configuration45		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2712-stwd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2712-stwd:-:::::::*

Configuration46		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2712-stwa_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2712-stwa:-:::::::*

Configuration47		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2712-stba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2712-stba:-:::::::*

Configuration48		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2712-stbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2712-stbd:-:::::::*

Configuration49		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2715-xtbd_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2715-xtbd:-:::::::*

Configuration50		or higher	or less	more than	less than
cpe:2.3:o:mitsubishielectric:got2000_gt2715-xtba_firmware:-:::::::*
execution environment
1	cpe:2.3:h:mitsubishielectric:got2000_gt2715-xtba:-:::::::*

Related information, measures and tools

No	URL	タグ
1	https://jvn.jp/vu/JVNVU98072504	Third Party Advisory
2	https://jvn.jp/vu/JVNVU98072504	Third Party Advisory
3	https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02	Third Party Advisory US Government Resource
4	https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02	Third Party Advisory US Government Resource
5	https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf	Vendor Advisory
6	https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf	Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-20	不適切な入力確認	https://cwe.mitre.org/data/definitions/20.html

JVN Vulnerability Information

三菱電機製 GOT2000 シリーズ、GOT SIMPLE シリーズ、GT SoftGOT2000 における不適切な入力確認の脆弱性

Title	三菱電機製 GOT2000 シリーズ、GOT SIMPLE シリーズ、GT SoftGOT2000 における不適切な入力確認の脆弱性
Summary	三菱電機株式会社が提供する GOT2000 シリーズ、GOT SIMPLE シリーズ、GT SoftGOT2000 には、デバイス値に対する不適切な入力確認（CWE-20、CVE-2021-20601）の脆弱性が存在します。この脆弱性情報は、製品利用者への周知を目的に、開発者が JPCERT/CC に報告し、JPCERT/CC が開発者との調整を行いました。
Possible impacts	遠隔の第三者によって悪意を持ったパケットを送信され、デバイス値の書き換えが行われた場合、設定された入力範囲の制限を超える値が書き込まれるといった情報改ざんが行われる可能性があります。その結果、システムが誤動作するなどの可能性があります。
Solution	[ワークアラウンドを実施する] 次の回避策を適用することで、本脆弱性の影響を軽減することが可能です。　* 当該製品をインターネットに接続する場合には、ファイアウォールや仮想プライベートネットワーク (VPN) 等を使用する　* LAN 内で使用し、信頼できないネットワークやホストからアクセスできないようにする　* 該当製品やシステムへアクセス可能なパソコンにウイルス対策ソフトを搭載する　* 当該製品の IP フィルタ機能（1）を使用し、接続可能な IP アドレスを適切に制限する（1）IP フィルタ機能については、開発者が提供する「GT Designer3 (GOT2000) 画面設計マニュアル (SH-081219) 『5.4.3 章 IP フィルタを設定する』」に記載されています。詳しくは<a href="https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf" target="_blank">開発者が提供する情報</a>をご確認ください。
Publication Date	Nov. 16, 2021, midnight
Registration Date	Nov. 17, 2021, 5:05 p.m.
Last Update	Nov. 17, 2021, 5:05 p.m.

Affected System

三菱電機

GOT SIMPLE シリーズ GS21 モデル全バージョン

GOT2000 シリーズ GT21 モデル全バージョン

GOT2000 シリーズ GT23 モデル全バージョン

GOT2000 シリーズ GT25 モデル全バージョン

GOT2000 シリーズ GT27 モデル全バージョン

GT SoftGOT2000 全バージョン

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2021-20601	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20601

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-20	https://jvndb.jvn.jp/ja/cwe/CWE-20.html

ベンダー情報

No	Name	URL
三菱電機株式会社
1	GOT2000シリーズ、GOT SIMPLEシリーズ、GT SoftGOT2000における情報改ざんの脆弱性	https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf

その他

No	Name	URL
ICS-CERT ADVISORY
1	ICSA-21-320-02	https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02
JVN
2	JVNVU#98072504	http://jvn.jp/vu/JVNVU98072504/index.html

Change Log

No	Changed Details	Date of change
1	[2021年11月17日] 掲載	Nov. 17, 2021, 3:55 p.m.