| Summary | An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients., aka 'Microsoft Exchange Information Disclosure Vulnerability'. |
|---|---|
| Publication Date | July 16, 2019, 4:15 a.m. |
| Registration Date | Jan. 26, 2021, 11:37 a.m. |
| Last Update | Nov. 21, 2024, 1:35 p.m. |
| CVSS3.0 : MEDIUM | |
| スコア | 6.5 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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) | 低 |
| 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 | 4.0 |
|---|---|
| Vector | AV:N/AC:L/Au:S/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) | 低 |
| 攻撃前の認証要否(Au) | 単一 |
| 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 | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_1:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:lync:2013:sp1:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:mail_and_calendar:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:2016:*:*:*:*:mac_os:*:* | |||||
| cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_2:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:skype_for_business_basic:2016:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2010:sp2:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:lync_basic:2013:sp1:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:* | |||||
| cpe:2.3:a:microsoft:office:2019:*:*:*:*:macos:*:* | |||||
| cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:android:*:* | |||||
| cpe:2.3:a:microsoft:outlook:-:*:*:*:*:iphone_os:*:* | |||||
| Title | 複数のMicrosoft 製品における情報を公開される脆弱性 |
|---|---|
| Summary | 複数のMicrosoft 製品には、Microsoft Exchange Server が表示名に印字できない文字を含むエンティティの作成を許可する場合、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「Microsoft Exchange の情報漏えいの脆弱性」として公開しています。 |
| Possible impacts | 認証された攻撃者により、無効な表示名を持つエンティティを作成されることで、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 | July 9, 2019, midnight |
| Registration Date | July 24, 2019, 3:36 p.m. |
| Last Update | July 24, 2019, 3:36 p.m. |
| マイクロソフト |
| Mail and Calendar |
| Mail and Calendar |
| Microsoft Exchange Server 2010 SP3 |
| Microsoft Exchange Server 2013 Cumulative Update 23 |
| Microsoft Exchange Server 2016 Cumulative Update 12 |
| Microsoft Exchange Server 2016 Cumulative Update 13 |
| Microsoft Exchange Server 2019 Cumulative Update 1 |
| Microsoft Exchange Server 2019 Cumulative Update 2 |
| Microsoft Exchange Server 2010 SP3 |
| Microsoft Exchange Server 2013 Cumulative Update 23 |
| Microsoft Exchange Server 2016 Cumulative Update 12 |
| Microsoft Exchange Server 2016 Cumulative Update 13 |
| Microsoft Exchange Server 2019 Cumulative Update 1 |
| Microsoft Exchange Server 2019 Cumulative Update 2 |
| Microsoft Lync 2013 SP1 (32-bit) |
| Microsoft Lync 2013 SP1 (64-bit) |
| Microsoft Lync Basic 2013 SP1 (32-bit) |
| Microsoft Lync Basic 2013 SP1 (64-bit) |
| Microsoft Lync 2013 SP1 (32-bit) |
| Microsoft Lync 2013 SP1 (64-bit) |
| Microsoft Lync Basic 2013 SP1 (32-bit) |
| Microsoft Lync Basic 2013 SP1 (64-bit) |
| Microsoft Office 2013 RT SP1 |
| Microsoft Office 2013 SP1 (32-bit editions) |
| Microsoft Office 2013 SP1 (64-bit editions) |
| Microsoft Office 2016 (32-bit edition) |
| Microsoft Office 2016 (64-bit edition) |
| Microsoft Office 2016 for Mac |
| Microsoft Office 2019 for 32-bit editions |
| Microsoft Office 2019 for 64-bit editions |
| Microsoft Office 2019 for Mac |
| Microsoft Office 2013 RT SP1 |
| Microsoft Office 2013 SP1 (32-bit editions) |
| Microsoft Office 2013 SP1 (64-bit editions) |
| Microsoft Office 2016 (32-bit edition) |
| Microsoft Office 2016 (64-bit edition) |
| Microsoft Office 2016 for Mac |
| Microsoft Office 2019 for 32-bit editions |
| Microsoft Office 2019 for 64-bit editions |
| Microsoft Office 2019 for Mac |
| Microsoft Outlook 2010 SP2 (32-bit editions) |
| Microsoft Outlook 2010 SP2 (64-bit editions) |
| Microsoft Outlook 2013 SP1 (32-bit editions) |
| Microsoft Outlook 2013 SP1 (64-bit editions) |
| Microsoft Outlook 2016 (32-bit edition) |
| Microsoft Outlook 2016 (64-bit edition) |
| Microsoft Outlook for Android |
| Microsoft Outlook for iOS |
| Microsoft Outlook 2010 SP2 (32-bit editions) |
| Microsoft Outlook 2010 SP2 (64-bit editions) |
| Microsoft Outlook 2013 SP1 (32-bit editions) |
| Microsoft Outlook 2013 SP1 (64-bit editions) |
| Microsoft Outlook 2016 (32-bit edition) |
| Microsoft Outlook 2016 (64-bit edition) |
| Microsoft Outlook for Android |
| Microsoft Outlook for iOS |
| Office 365 ProPlus for 32-bit Systems |
| Office 365 ProPlus for 64-bit Systems |
| Office 365 ProPlus for 32-bit Systems |
| Office 365 ProPlus for 64-bit Systems |
| Skype for Business 2016 (32-bit) |
| Skype for Business 2016 (64-bit) |
| Skype for Business 2016 Basic (32-bit) |
| Skype for Business 2016 Basic (64-bit) |
| Skype for Business 2016 (32-bit) |
| Skype for Business 2016 (64-bit) |
| Skype for Business 2016 Basic (32-bit) |
| Skype for Business 2016 Basic (64-bit) |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2019年07月24日] 掲載 |
July 24, 2019, 3:36 p.m. |