NVD Vulnerability Detail
Search Exploit, PoC
CVE-2020-16937
Summary

<p>An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory. An attacker who successfully exploited the vulnerability could disclose contents of an affected system's memory.</p>
<p>To exploit the vulnerability, an authenticated attacker would need to run a specially crafted application.</p>
<p>The update addresses the vulnerability by correcting how the .NET Framework handles objects in memory.</p>

Publication Date Oct. 17, 2020, 8:15 a.m.
Registration Date Jan. 26, 2021, 11:54 a.m.
Last Update Nov. 21, 2024, 2:07 p.m.
CVSS3.1 : MEDIUM
スコア 4.7
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC) 高
攻撃に必要な特権レベル(PR) 低
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) なし
可用性への影響(A) なし
CVSS2.0 : MEDIUM
Score 4.3
Vector AV:N/AC:M/Au:N/C:P/I:N/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 中
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) なし
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 はい
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
Configuration2 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_8.1:-:*:*:*:*:*:*:*
2 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
3 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
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_server_2016:-:*:*:*:*:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
Configuration5 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
2 cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
3 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Configuration7 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
2 cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
3 cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
4 cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
5 cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
6 cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
7 cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
8 cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Configuration8 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:*:*:*:*:*:*
Configuration9 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:*:*:*:*:*:*
6 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
7 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:4.6:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
Configuration11 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:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
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:r2:sp1:*:*:*:*:*:*
5 cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
6 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Configuration12 or higher or less more than less than
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
2 cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
3 cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
4 cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
5 cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
6 cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
7 cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
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:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Microsoft .NET Framework における情報を公開される脆弱性
Title Microsoft .NET Framework における情報を公開される脆弱性
Summary

Microsoft .NET Framework には、メモリ内のオブジェクトを適切に処理しない場合、情報を公開される脆弱性が存在します。 ベンダは、本脆弱性を「.NET Framework の情報漏えいの脆弱性」として公開しています。

Possible impacts 情報を公開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 Oct. 13, 2020, midnight
Registration Date Dec. 16, 2020, 5:27 p.m.
Last Update Dec. 16, 2020, 5:27 p.m.
Affected System
マイクロソフト
Microsoft .NET Framework 2.0 SP2
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2
Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2
Microsoft .NET Framework 3.5 AND 4.7.2
Microsoft .NET Framework 3.5 AND 4.8
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.8
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
No Changed Details Date of change
1 [2020年12月16日]
  掲載		 Dec. 16, 2020, 5:27 p.m.