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Questions tagged [azure]

A cloud computing platform offered by Microsoft.

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Change default classification label (Azure Information Protection) in Microsoft Office (Outlook, Word, Excel) by user

We have Azure Information Protection (AIP) configured for our organisation, we have 4 labels defined (public, internal, confidential, secret). The default label set for the organization is to "...
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Microsoft Sentinel API for search a query

Is there any API in MS Sentinel to search a query, Workspace | where something == "something2" | where this "that" I tried using msticpy, any alternative that can be done using a ...
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What will happen to existing documents when AIP sensitivity label is redefined? [migrated]

Scenario: Admin defines and deploys sensitivity label in Microsoft Purview Compliance Portal, sets the access rights to a group of people. Some user uses a sensitivity label to protect/encrypt the ...
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Is my perception of improved security by restricting access to an MS365 tenant/associated apps on per-device basis misguided? Why?

Receiving guidance from a contractor that restricting unknown devices (regardless of MFA, location, etc.) to an Azure tenant does not improve security in any meaningful way, and just creates a ...
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Intercept API calls of powershell module

I am looking at a way to intercept the API call made by the AzureAD powershell module. Wireshark is not able to decrypt the TLS packets sent and I'd also like to work with the HTTP requests rather ...
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Best way to encrypt client side data for SaaS inside the web

I am planning a SaaS-solution, where my clients store and save sensitive data on my servers. Security is a big point as it makes a product more trustworthy, so my thought was that the data which I ...
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What would be the best way to mitigate Azure Application Gateway WAF False Positive?

We have a Web API which uses the REST semantics and is protected using the Azure's Application Gateway using a Web Application Firewall. The Web App consuming this API can send in any type of data in ...
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Azure WAF support for OData

I have noticed some of the OWASP rules from Azure WAF are rejecting OData default filtered such as $select, suspecting it to be SQL injection. How can you handle the nature of OData from Azure WAF? 1. ...
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Why I need to store my ASP.NET service configuration in Azure Key Vault

There is a feature in the ASP.NET Core, that allows you to store sensitive configuration keys in the Azure Key Vault as Secrets. However, I can't see any attack scenario, in which this will help to ...
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How dangerous is a leaked private key from outside the infrastructure in context of: "Azure Active Directory keyCredential property Disclosure?"

Microsoft published the Guidance for Azure Active Directory (AD) keyCredential property Information Disclosure in Application and Service Principal APIs which describes how to check if an Azure AD is ...
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New rule on verifying domain for azureAD app registration

ref: https://docs.microsoft.com/en-us/azure/active-directory/develop/reference-breaking-changes#appid-uri-in-single-tenant-applications-will-require-use-of-default-scheme-or-verified-domains We setup ...
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Is using SSL/TLS Termination insecure in Azure with Private Endpoints

Azure documentation mentions using SSL termination at app gateways to offload app services from some overhead. This sounds like a good idea, but then traffic will be unencrypted when travelling from ...
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Is it possible to prevent Kerbrute from unauthenticated user enumation Active Directory?

Currently looking for a way to prevent unauthenticated user enumeration on a Domain Controller. This is a security precaution I'd like to implement, next to the existing measures taken prevent ...
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What type of breach is occurring with Puppeteer.js on this Azure hosted webapp? (Snapshot provided)

When running the screenshot.js on https://try-puppeteer.appspot.com/, a web based Puppeteer.js I the image produced was of a gaming/gambling website, not my website at all! My site was https://...
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Does "validating" a JWT token from prove authentication with OpenId?

I have a static react app which users login via an Okta SPA app. The app receives a JWT, which it is stored in the browser, and passed to the backend API via Authentication header on every request. ...
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Using SMIME with Azure Information Protection and OME

As far as I know, SMIME encryption is more user-friendly than AIP, but there is the need to know the recipients public key (well, and even the need for them to have a public key). I would like to ...
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MFA and developer access

How do we give access to some APIs with different levels of security? I'm currently at a company where we have established a set of approved patterns of external exposure. In practice this means that ...
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Is there a way to bypass Azure AD when iframing a website?

I'm currently doing a dynamic security evaluation on a website using Azure AD for login. Initial scans show that the X-frame options header is not set. Obviously, this will be reported at the very ...
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Nitro Enclave / KMS Equivalent for Google and Azure

In AWS KMS I can set a key policy on a CMK so that it can only be used from within a Nitro Enclave that either has a particular signature or a particular image hash. Is there something similar to this ...
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How to mitigate risk of spoofing / Impersonating in OAuth Device flow ( device code flow ) in Azure AD?

I have developed C# application and hosted it as a windows service on a machine http://localhost:5000 . This application registered in `Azure Active Directory Application is using the below details in-...
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Does azurevpnconfig (Azure) contain security-relevant information?

I created a new VPN gateway inside my Azure environment (OpenVPN SSL with AD authentication). After that, I downloaded the profile/config file which contains azurevpnconfig. With this file, the ...
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Azure Impossible Travel

So I am trying to hammer out the best process of handling impossible travel alerts and suspicious VPN activity. In my current environment I dont have admin privileges to immediately disable user ...
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34 votes
4 answers
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Is serverless code immune to DDoS attacks?

In classic hosting we have a virtual machine with limited resources allocated by hosting provider for running our web application. But with serverless code such as AWS Lambda or Azure Functions, our ...
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Storing client keys in cloud app

I'm using Azure to store customer data. In a specific country, there are multiple partners. Each partner has his clients. The issue is they don't want us to have access to this data. In other words, ...
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1 vote
4 answers
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Ingress client certificate authenticate requires CA certificate to be stored in secret?

I want to enable client-certificate authentication in my AKS cluster and I have a basic question which I just don't seem to understand. As per the docs, ingress requires the CA certificate to be ...
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Should I consider migrating away from OAuth 2.0 Implicit Flow for an internal application relying on Azure AD?

I have recently migrated an internal application (API + SPA) security from Windows Authentication (done by IIS) to Azure A/D authentication using the implicit flow. Now, every user must enter an e-...
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1 answer
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How to restrict access to API in Azure API Management to known applications?

We need to create an API in Azure API Management and allow only known, registered applications to call it. We can require authentication, which restricts access to only people in our AAD, but how can ...
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2 answers
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Requesting an SSL certificate without a CSR, can it be done?

Please excuse me if this is a dumb or obvious question, I'm self taught and have not been able to find an exact answer to my question after much Googling and reading through StacEx! I'm having issues ...
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Why if a server response contain both Public: TRACE and Allow: TRACE then responds with 405 NOT allowed?

SCENARIO: I'm testing a web application. To test if TRACE is enabled I used both nmap --script http-methods target.com and curl -k -i -X OPTIONS target.com After running the former I get 443/tcp ...
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Azure Ad B2C Users access resources in other directory

I have two directories in Azure. The first one contains all the customers of our company, who are registered in Azure Ad B2C. These users must be separated from the other directory, which contains ...
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1 vote
1 answer
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Verifying the security of SAML SSO

I run an instance of a log aggregation product in the cloud, installed on a VM. I've strictly configured it's networking settings, internal firewall, internal port redirection, strong admin password, ...
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1 answer
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Should I consider my Azure tenant ID as a secret?

As the title says: Should I consider my Azure tenant ID (GUID) as a secret? Are there any security implications when someone knows about this id?
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23 votes
2 answers
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How critical is encryption-at-rest for public cloud hosted systems?

I work as a solutions architect for web-based systems on AWS. As part of this role, I often respond to Information Security questionnaires. Nearly all questionnaires request information about data ...
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1 answer
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Is it safe to expose port 22 on a database VM? [closed]

I have seen many answers to this question in different scenarios but I am still unsure of the actual answer. I have a VM in the cloud (Azure), which will be hosting my production database. Is it safe ...
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1 answer
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Wrap key operation in Azure Key Vault - symmetric keys

Could anyone explain why the bolded part of the wrap key description? Wraps a symmetric key using a specified key. The WRAP operation supports encryption of a symmetric key using a key encryption key ...
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1 answer
523 views

How often should we force users to re-authenticate when not on the network?

Our company has rolled out MFA to our users. We are a Microsoft shop, so we are using Azure AD to handle MFA and authentication to things like email, Teams, Sharepoint, etc. By default, we've disabled ...
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1 vote
1 answer
231 views

Security pattern for third party uploads to Azure blob container

Scenario: Vendor 1 needs to upload data (.json, compressed .csv files, images and video) to an Azure blob storage container owned by Vendor 2 Vendor 1 is issued a limited duration SAS token each day ...
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  • 113
2 votes
1 answer
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How to prevent azure pipelines (yaml) from being used as an attack vector?

Let's say the following scenario exists: A git repository exists on Azure DevOps Repos. The repository uses yaml pipelines (azure-pipelines.yml). The repository has branch policies to ensure that ...
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Is there a current best practice for authorizing an SPA to get/post to API

I have an API and an SPA. The SPA is all anonymous but I want to ensure the caller of the API is authorized to do so. It seems that all of the OAuth best practices, e.g. PKCE, depend on a user ...
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2 votes
4 answers
2k views

How do I configure Azure Web Apps so that the only access is via CloudFlare?

I have a Web Apps (Linux) application on Azure, and I added a custom domain which I have protected with CloudFlare. I added Azure Security Center to my subscription. At the moment one can access the ...
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2 votes
0 answers
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IPS solution for a medium sized web application

As part of application security compliance we are supposed to implement an IPS on our application. The application is basically an educational web portal where students can enrol for course assessment....
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44 votes
9 answers
8k views

I have just 4 hours a month to security check a cloud based application - How to use my time?

I've been tasked with looking after an application deployed to azure. I have been allocated 4 hours a month. I essentially have half a workday to secure this application / keep it secure. What is an ...
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What protocol is NPS server using to send Secondary Auth to Azure MFA?

We are using PAP to pass data between our on-prem VMware and on-prem NPS server. But our on-prem NPS Server passes data to Azure MFA in the cloud. I want to ensure a stronger protocol than PAP is ...
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3 votes
1 answer
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Why isn't cloud (AWS, Azure, GCP) metadata served over HTTPS?

Why can any application or user on your server type an insecure URL like these to get server information about that instance? http://instance-data.us-east-1.compute.internal/latest/meta-data/ http://...
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Security and distro list naming convention in AAD

Most naming convention standards for Active Directory I have come across so far have security groups starting with an underscore to allow the equivalent distribution list to be user-friendly. I am ...
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1 answer
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RDP to Azure VMs through public IP versus VPN

I have two options for remoting into our Azure VMs: RDP to public IP or RDP through VPN. I'm certain using a VPN is 'more' secure. But my question is: Is it still reasonably secure to have a hole in ...
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What are the benefits of using Nessus in addition to Azure Security Center?

Are there any benefits to using vulnerability scanners such as Nessus Pro or Tenable.io, if we are already using Azure Security Center for vulnerability and update management? Or does it have any ...
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4 votes
1 answer
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Does FedRAMP apply to the cloud hosting environment, the software being hosted, or both?

Our company is limited to using products that maintain FedRAMP compliance, and we are looking to implement a new data collection tool. We are interested in a product that utilizes Microsoft Azure, ...
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Does Azure Key-Vault encrypt the values before storing?

We are using key-vault for storing the secrets, will it give any added advantage if we encrypt the values before storing it in key-vault?
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  • 143
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Azure AD -- How to only allow MFA configuration from a trusted network?

Hopefully someone as an idea... In Azure AD, how can we allow MFA setup by a user but only allow that configuration to occur on a trusted network? We have trusted networks defined but everything we ...
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