NVD Vulnerability Detail

CVE-2021-25668

Summary	A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the webserver may result in write out of bounds in heap. An attacker might leverage this to cause denial-of-service on the device and potentially remotely execute code.
Publication Date	April 23, 2021, 6:15 a.m.
Registration Date	April 23, 2021, 10:04 a.m.
Last Update	Nov. 21, 2024, 2:55 p.m.

CVSS3.1 : CRITICAL
スコア	9.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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)	高
完全性への影響(I)	高
可用性への影響(A)	高

CVSS2.0 : HIGH
Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P
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)	低
完全性への影響(I)	低
可用性への影響(A)	低
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:o:siemens:scalance_x200-4p_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x200-4p_irt:-:::::::*

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x201-3p_irt:-:::::::*

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x201-3p_irt_pro:-:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x202-2_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x202-2_irt:-:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x202-2p_irt_pro:-:::::::*

Configuration6		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x204_irt:-:::::::*

Configuration7		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204_irt_pro_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x204_irt_pro:-:::::::*

Configuration8		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204-2_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x204-2:-:::::::*

Configuration9		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204-2fm_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x204-2fm:-:::::::*

Configuration10		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204-2ld_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x204-2ld:-:::::::*

Configuration11		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x204-2ld_ts:-:::::::*

Configuration12		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x204-2ts_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x204-2ts:-:::::::*

Configuration13		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x206-1_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x206-1:-:::::::*

Configuration14		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x206-1ld_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x206-1ld:-:::::::*

Configuration15		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x208_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x208:-:::::::*

Configuration16		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x208pro_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x208pro:-:::::::*

Configuration17		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x212-2_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x212-2:-:::::::*

Configuration18		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x212-2ld_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x212-2ld:-:::::::*

Configuration19		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x216_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x216:-:::::::*

Configuration20		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x224_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_x224:-:::::::*

Configuration21		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_xf201-3p_irt:-:::::::*

Configuration22		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_xf202-2p_irt:-:::::::*

Configuration23		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf204_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_xf204:-:::::::*

Configuration24		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf204_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_xf204_irt:-:::::::*

Configuration25		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf204-2_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_xf204-2:-:::::::*

Configuration26		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_xf204-2ba_irt:-:::::::*

Configuration27		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf206-1_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_xf206-1:-:::::::*

Configuration28		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_xf208_firmware::::::::					5.2.5
execution environment
1	cpe:2.3:h:siemens:scalance_xf208:-:::::::*

Configuration29		or higher	or less	more than	less than
cpe:2.3:o:siemens:scalance_x202-2p_irt_firmware::::::::					5.5.1
execution environment
1	cpe:2.3:h:siemens:scalance_x202-2p_irt:-:::::::*

Related information, measures and tools

No	URL	refsource	タグ
1	https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf		Patch Vendor Advisory
2	https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf		Patch Vendor Advisory

Common Vulnerabilities List

JVN Vulnerability Information

複数のシーメンス製品における境界外書き込みに関する脆弱性

Title	複数のシーメンス製品における境界外書き込みに関する脆弱性
Summary	複数のシーメンス製品には、境界外書き込みに関する脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	April 13, 2021, midnight
Registration Date	Dec. 28, 2021, 2:35 p.m.
Last Update	Dec. 28, 2021, 2:35 p.m.

Affected System

シーメンス

SCALANCE X200-4PIRT ファームウェア 5.5.1 未満

SCALANCE X201-3P IRT PRO ファームウェア 5.5.1 未満

SCALANCE X201-3PIRT ファームウェア 5.5.1 未満

SCALANCE X202-2IRT ファームウェア 5.5.1 未満

SCALANCE X202-2P IRT PRO ファームウェア 5.5.1 未満

SCALANCE X204 IRT PRO ファームウェア 5.5.1 未満

SCALANCE X204 IRT ファームウェア 5.5.1 未満

SCALANCE X204-2 ファームウェア 5.2.5 未満

SCALANCE X204-2FM ファームウェア 5.2.5 未満

SCALANCE X204-2LD ファームウェア 5.2.5 未満

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-2021-25668	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25668
National Vulnerability Database (NVD)
2	CVE-2021-25668	https://nvd.nist.gov/vuln/detail/CVE-2021-25668

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
Siemens Security Advisory
1	SSA-187092	https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf

その他

No	Name	URL
JVN
1	JVNVU#96269392	https://jvn.jp/vu/JVNVU96269392/

Change Log

No	Changed Details	Date of change
1	[2021年12月28日] 掲載	Dec. 28, 2021, 2:35 p.m.