NVD Vulnerability Detail

CVE-2018-8517

Summary	A denial of service vulnerability exists when .NET Framework improperly handles special web requests, aka ".NET Framework Denial Of Service Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.
Publication Date	Dec. 12, 2018, 9:29 a.m.
Registration Date	March 1, 2021, 7:41 p.m.
Last Update	Nov. 21, 2024, 1:13 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:N/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)	なし
完全性への影響(I)	なし
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:N/I:N/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)	なし
完全性への影響(I)	なし
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:a:microsoft:.net_framework:3.5:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_10:1703:::::::*
3	cpe:2.3:o:microsoft:windows_10:1709:::::::*
4	cpe:2.3:o:microsoft:windows_10:1803:::::::*
5	cpe:2.3:o:microsoft:windows_10:1809:::::::*
6	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:-:::::::*
10	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
11	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
12	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration2		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:3.5:sp1::::::
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:3.5.1:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1::::::

Configuration4		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:-::::pro_n:::
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_2012:-:::::::*
6	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
3	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
4	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
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:::::::*
8	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

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_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:::::::*

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_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:::::::*

Configuration8		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_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_10:1703:::::::*
3	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
4	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
5	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
6	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
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:-:::::::*
10	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration9		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_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_10:1703:::::::*
3	cpe:2.3:o:microsoft:windows_10:1709:::::::*
4	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
5	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
6	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
7	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
8	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
9	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
10	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
11	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*

Configuration10		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.7.2:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_10:1703:::::::*
3	cpe:2.3:o:microsoft:windows_10:1709:::::::*
4	cpe:2.3:o:microsoft:windows_10:1803:::::::*
5	cpe:2.3:o:microsoft:windows_10:1809:::::::*
6	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
7	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
8	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
9	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
10	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
11	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
12	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
13	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
14	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
15	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Related information, measures and tools

No	URL	タグ
1	http://www.securityfocus.com/bid/106075	Third Party Advisory VDB Entry
2	http://www.securityfocus.com/bid/106075	Third Party Advisory VDB Entry
3	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8517	Patch Vendor Advisory
4	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8517	Patch Vendor Advisory

Common Vulnerabilities List

JVN Vulnerability Information

Microsoft .NET Framework におけるサービス運用妨害 (DoS) にされる脆弱性

Title	Microsoft .NET Framework におけるサービス運用妨害 (DoS) にされる脆弱性
Summary	Microsoft .NET Framework には、特殊な Web リクエストを適切に処理しない場合、サービス運用妨害 (DoS) にされる脆弱性が存在します。ベンダは、本脆弱性を「.NET Framework のサービス拒否の脆弱性」として公開しています。
Possible impacts	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	Dec. 11, 2018, midnight
Registration Date	Jan. 8, 2019, 6:12 p.m.
Last Update	Jan. 8, 2019, 6:12 p.m.

Affected System

マイクロソフト

Microsoft .NET Framework 3.5

Microsoft .NET Framework 3.5 SP1

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

Microsoft .NET Framework 4.7.2

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-2018-8517	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8517
National Vulnerability Database (NVD)
2	CVE-2018-8517	https://nvd.nist.gov/vuln/detail/CVE-2018-8517
Security Update Guide
3	CVE-2018-8517 \| .NET Framework Denial Of Service Vulnerability	https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2018-8517
セキュリティ更新プログラムガイド
4	CVE-2018-8517 \| .NET Framework のサービス拒否の脆弱性	https://portal.msrc.microsoft.com/ja-jp/security-guidance/advisory/CVE-2018-8517

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

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12月)	https://www.ipa.go.jp/security/ciadr/vul/20181212ms.html
JPCERT 注意喚起
2	JPCERT-AT-2018-0050	http://www.jpcert.or.jp/at/2018/at180050.html

Change Log

No	Changed Details	Date of change
1	[2019年01月08日] 掲載	Jan. 8, 2019, 6:12 p.m.

Configuration1		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_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_10:1703:::::::*
3	cpe:2.3:o:microsoft:windows_10:1709:::::::*
4	cpe:2.3:o:microsoft:windows_10:1803:::::::*
5	cpe:2.3:o:microsoft:windows_10:1809:::::::*
6	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:-:::::::*
10	cpe:2.3:o:microsoft:windows_server_2016:1709:::::::*
11	cpe:2.3:o:microsoft:windows_server_2016:1803:::::::*
12	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration4		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:-::::pro_n:::
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_2012:-:::::::*
6	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*

Configuration5		or higher	or less	more than	less than
cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
execution environment
1	cpe:2.3:o:microsoft:windows_10:1607:::::::*
2	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
3	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
4	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
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:::::::*
8	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*

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_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:::::::*

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_7:-:sp1::::::
2	cpe:2.3:o:microsoft:windows_8.1:-::::pro_n:::
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:::::::*