NVD Vulnerability Detail

CVE-2018-0786

Summary	Microsoft .NET Framework 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, .NET Core 1.0 and 2.0, and PowerShell Core 6.0.0 allow a security feature bypass vulnerability due to the way certificates are validated, aka ".NET Security Feature Bypass Vulnerability."
Publication Date	Jan. 10, 2018, 10:29 a.m.
Registration Date	March 1, 2021, 6:38 p.m.
Last Update	Nov. 21, 2024, 12:38 p.m.

CVSS3.0 : HIGH
スコア	7.5
Vector	CVSS:3.0/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 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:N/I:P/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)	低
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:microsoft:.net_core:2.0:::::::*
cpe:2.3:a:microsoft:.net_core:1.0:::::::*
cpe:2.3:a:microsoft:powershell_core:6.0:::::::*

Configuration2		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:2.0:sp2::::::
cpe:2.3:a:microsoft:.net_framework:3.0:sp2::::::
execution environment
1	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::

Configuration3		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:3.5:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:-:::::::*
2	cpe:2.3:o:microsoft:windows_10:1511:::::::*
3	cpe:2.3:o:microsoft:windows_10:1607:::::::*
4	cpe:2.3:o:microsoft:windows_10:1703:::::::*
5	cpe:2.3:o:microsoft:windows_10:1709:::::::*
6	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
7	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
8	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
9	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:3.5.1:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
3	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::itanium:*

Configuration5		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.5.2:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
3	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
4	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
5	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
6	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
7	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration6		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:-:::::::*
2	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::

Configuration7		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6.1:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1511:::::::*

Configuration8		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
cpe:2.3:a:microsoft:.net_framework:4.7:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

Configuration9		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6:::::::*
cpe:2.3:a:microsoft:.net_framework:4.6.1:::::::*
cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
cpe:2.3:a:microsoft:.net_framework:4.7:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
3	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
4	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
5	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
6	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration10		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.7:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1703:::::::*

Configuration11		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.7.1:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1709:::::::*

Related information, measures and tools

No	URL	タグ
1	http://www.securityfocus.com/bid/102380	Third Party Advisory VDB Entry
2	http://www.securityfocus.com/bid/102380	Third Party Advisory VDB Entry
3	http://www.securitytracker.com/id/1040152	Third Party Advisory VDB Entry
4	http://www.securitytracker.com/id/1040152	Third Party Advisory VDB Entry
5	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786	Patch Vendor Advisory
6	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786	Patch Vendor Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-295	不正な証明書検証	https://cwe.mitre.org/data/definitions/295.html

JVN Vulnerability Information

Microsoft .NET Framework および .NET Core におけるセキュリティ機能を回避される脆弱性

Title	Microsoft .NET Framework および .NET Core におけるセキュリティ機能を回避される脆弱性
Summary	Microsoft .NET Framework および .NET Core には、証明書を適切に検証しないため、セキュリティ機能を回避される脆弱性が存在します。ベンダは、本脆弱性を「.NET のセキュリティ機能のバイパスの脆弱性」として公開しています。
Possible impacts	セキュリティ機能を回避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	Jan. 9, 2018, midnight
Registration Date	Feb. 2, 2018, 11:24 a.m.
Last Update	Feb. 2, 2018, 11:24 a.m.

Affected System

マイクロソフト

.NET Core 1.0

.NET Core 2.0

Microsoft .NET Framework 2.0 SP2

Microsoft .NET Framework 3.0 SP2

Microsoft .NET Framework 3.5

Microsoft .NET Framework 3.5.1

Microsoft .NET Framework 4.5.2

Microsoft .NET Framework 4.6

Microsoft .NET Framework 4.6.1

Microsoft .NET Framework 4.6.2

Microsoft .NET Framework 4.7

Microsoft .NET Framework 4.7.1

PowerShell Core 6.0.0

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-2018-0786	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0786
National Vulnerability Database (NVD)
2	CVE-2018-0786	https://nvd.nist.gov/vuln/detail/CVE-2018-0786
Security TechCenter
3	CVE-2018-0786 \| .NET Security Feature Bypass Vulnerability	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786
セキュリティ TechCenter
4	CVE-2018-0786 \| .NET のセキュリティ機能のバイパスの脆弱性	https://portal.msrc.microsoft.com/ja-jp/security-guidance/advisory/CVE-2018-0786

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-254	https://cwe.mitre.org/data/definitions/254.html

その他

No	Name	URL
IPA 重要なセキュリティ情報
1	Microsoft 製品の脆弱性対策について(2018年01月)	https://www.ipa.go.jp/security/ciadr/vul/20180110-ms.html
JPCERT 注意喚起
2	JPCERT-AT-2018-0002	http://www.jpcert.or.jp/at/2018/at180002.html

Change Log

No	Changed Details	Date of change
0	[2018年02月02日] 掲載	Feb. 17, 2018, 10:37 a.m.

Configuration3		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:3.5:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:-:::::::*
2	cpe:2.3:o:microsoft:windows_10:1511:::::::*
3	cpe:2.3:o:microsoft:windows_10:1607:::::::*
4	cpe:2.3:o:microsoft:windows_10:1703:::::::*
5	cpe:2.3:o:microsoft:windows_10:1709:::::::*
6	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
7	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
8	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
9	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.5.2:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
3	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
4	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
5	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
6	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
7	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration9		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6:::::::*
cpe:2.3:a:microsoft:.net_framework:4.6.1:::::::*
cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
cpe:2.3:a:microsoft:.net_framework:4.7:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
3	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
4	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
5	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
6	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*