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Researchers Disclose Details of Critical 'CosMiss' RCE Flaw Affecting Azure Cosmos DB

Researchers Disclose Details of Critical 'CosMiss' RCE Flaw Affecting Azure Cosmos DB

Nov 01, 2022
Microsoft on Tuesday said it addressed an authentication bypass vulnerability in  Jupyter Notebooks  for Azure Cosmos DB that enabled full read and write access. The tech giant said the problem was introduced on August 12, 2022, and rectified worldwide on October 6, 2022, two days after responsible disclosure from Orca Security, which dubbed the flaw  CosMiss . "In short, if an attacker had knowledge of a Notebook's 'forwardingId,' which is the UUID of the Notebook Workspace, they would have had full permissions on the Notebook without having to authenticate, including read and write access, and the ability to modify the file system of the container running the notebook," researchers Lidor Ben Shitrit and Roee Sagi said. This container modification could ultimately pave the way for obtaining remote code execution in the Notebook container by overwriting a Python file associated with the  Cosmos DB Explorer  to spawn a reverse shell. Successful exploitation
Microsoft Confirms Server Misconfiguration Led to 65,000+ Companies' Data Leak

Microsoft Confirms Server Misconfiguration Led to 65,000+ Companies' Data Leak

Oct 21, 2022
Microsoft this week confirmed that it inadvertently exposed information related to thousands of customers following a security lapse that left an endpoint publicly accessible over the internet sans any authentication. "This misconfiguration resulted in the potential for unauthenticated access to some business transaction data corresponding to interactions between Microsoft and prospective customers, such as the planning or potential implementation and provisioning of Microsoft services," Microsoft  said  in an alert. Microsoft also emphasized that the B2B leak was "caused by an unintentional misconfiguration on an endpoint that is not in use across the Microsoft ecosystem and was not the result of a security vulnerability." The misconfiguration of the Azure Blob Storage was spotted on September 24, 2022, by cybersecurity company SOCRadar, which termed the leak  BlueBleed . Microsoft said it's in the process of directly notifying impacted customers. The Win
Researchers Detail Azure SFX Flaw That Could've Allowed Attackers to Gain Admin Access

Researchers Detail Azure SFX Flaw That Could've Allowed Attackers to Gain Admin Access

Oct 19, 2022
Cybersecurity researchers have shared more details about a now-patched security flaw in Azure Service Fabric Explorer (SFX) that could potentially enable an attacker to gain administrator privileges on the cluster. The vulnerability, tracked as  CVE-2022-35829 , carries a CVSS severity rating of 6.2 and was addressed by Microsoft as part of its  Patch Tuesday updates  last week. Orca Security, which  discovered and reported  the flaw to the tech giant on August 11, 2022, dubbed the vulnerability  FabriXss  (pronounced "fabrics"). It impacts Azure Fabric Explorer version 8.1.316 and prior. SFX is described by Microsoft as an  open-source tool  for inspecting and managing  Azure Service Fabric  clusters, a distributed systems platform that's used to build and deploy microservices-based cloud applications. The vulnerability is rooted in the fact that a user with  permissions  to "Create Compose Application" through the SFX client can leverage the privileges
Cloud-based Cryptocurrency Miners Targeting GitHub Actions and Azure VMs

Cloud-based Cryptocurrency Miners Targeting GitHub Actions and Azure VMs

Jul 11, 2022
GitHub Actions and Azure virtual machines (VMs) are being leveraged for cloud-based cryptocurrency mining, indicating sustained attempts on the part of malicious actors to target cloud resources for illicit purposes. "Attackers can abuse the  runners  or servers provided by GitHub to run an organization's pipelines and automation by maliciously downloading and installing their own cryptocurrency miners to gain profit easily," Trend Micro researcher Magno Logan  said  in a report last week. GitHub Actions ( GHAs ) is a continuous integration and continuous delivery (CI/CD) platform that allows users to automate the software build, test, and deployment pipeline. Developers can leverage the feature to create workflows that build and test every pull request to a code repository, or deploy merged pull requests to production. Both Linux and Windows runners are hosted on  Standard_DS2_v2  virtual machines on Azure and come with two vCPUs and 7GB of memory. The Japanese com
Microsoft Mitigates RCE Vulnerability Affecting Azure Synapse and Data Factory

Microsoft Mitigates RCE Vulnerability Affecting Azure Synapse and Data Factory

May 10, 2022
Microsoft on Monday disclosed that it mitigated a security flaw affecting Azure Synapse and Azure Data Factory that, if successfully exploited, could result in remote code execution. The vulnerability, tracked as  CVE-2022-29972 , has been codenamed " SynLapse " by researchers from Orca Security, who reported the flaw to Microsoft in January 2022. "The vulnerability was specific to the third-party Open Database Connectivity ( ODBC ) driver used to connect to Amazon Redshift in Azure Synapse pipelines and Azure Data Factory Integration Runtime ( IR ) and did not impact Azure Synapse as a whole," the company  said . "The vulnerability could have allowed an attacker to perform remote command execution across IR infrastructure not limited to a single tenant." In other words, a malicious actor can weaponize the bug to acquire the Azure Data Factory service certificate and access another tenant's Integration Runtimes to gain access to sensitive informa
Microsoft Azure Vulnerability Exposes PostgreSQL Databases to Other Customers

Microsoft Azure Vulnerability Exposes PostgreSQL Databases to Other Customers

Apr 29, 2022
Microsoft on Thursday disclosed that it addressed a pair of issues with the Azure Database for PostgreSQL Flexible Server that could result in unauthorized cross-account database access in a region. "By exploiting an elevated permissions bug in the Flexible Server authentication process for a replication user, a malicious user could leverage an improperly anchored regular expression to bypass authentication to gain access to other customers' databases," Microsoft Security Response Center (MSRC)  said . New York City-based cloud security company Wiz, which uncovered the flaws, dubbed the exploit chain " ExtraReplica ." Microsoft said it mitigated the bug within 48 hours of disclosure on January 13, 2022. Specifically, it relates to a case of privilege escalation in the Azure PostgreSQL engine to gain code execution and a cross-account authentication bypass by means of a forged certificate, allowing an attacker to create a database in the target's Azure r
Finding Attack Paths in Cloud Environments

Finding Attack Paths in Cloud Environments

Apr 12, 2022
The mass adoption of cloud infrastructure is fully justified by innumerable advantages. As a result, today, organizations' most sensitive business applications, workloads, and data are in the cloud. Hackers, good and bad, have noticed that trend and effectively evolved their attack techniques to match this new tantalizing target landscape. With threat actors' high reactivity and adaptability, it is recommended to assume that organizations are under attack and that some user accounts or applications might already have been compromised. Finding out exactly which assets are put at risk through compromised accounts or breached assets requires mapping potential attack paths across a comprehensive map of all the relationships between assets.  Today, mapping potential attack paths is performed with scanning tools such as AzureHound or AWSPX. Those are graph-based tools enabling the visualization of assets and resources relationships within the related cloud service provider. By r
Over 200 Malicious NPM Packages Caught Targeting Azure Developers

Over 200 Malicious NPM Packages Caught Targeting Azure Developers

Mar 24, 2022
A new large scale supply chain attack has been observed targeting Azure developers with no less than 218 malicious NPM packages with the goal of stealing personal identifiable information. "After manually inspecting some of these packages, it became apparent that this was a targeted attack against the entire  @azure NPM scope , by an attacker that employed an automatic script to create accounts and upload malicious packages that cover the entirety of that scope," JFrog researchers Andrey Polkovnychenko and Shachar Menashe  said  in a new report. The entire set of malicious packages was disclosed to the NPM maintainers roughly two days after they were published earlier this week, leading to their quick removal, but not before each of the packages were downloaded around 50 times on average. The attack refers to what's called typosquatting, which takes place when bad actors push rogue packages with names mimicking legitimate libraries to a public software registry such
Microsoft Azure 'AutoWarp' Bug Could Have Let Attackers Access Customers' Accounts

Microsoft Azure 'AutoWarp' Bug Could Have Let Attackers Access Customers' Accounts

Mar 08, 2022
Details have been disclosed about a now-addressed critical vulnerability in Microsoft's  Azure Automation  service that could have permitted unauthorized access to other Azure customer accounts and take over control. "This attack could mean full control over resources and data belonging to the targeted account, depending on the permissions assigned by the customer," Orca Security researcher Yanir Tsarimi  said  in a report published Monday. The flaw potentially put several entities at risk, including an unnamed telecommunications company, two car manufacturers, a banking conglomerate, and big four accounting firms, among others, the Israeli cloud infrastructure security company added. The Azure Automation service  allows  for process automation, configuration management, and handling operating system updates within a defined maintenance window across Azure and non-Azure environments. Dubbed " AutoWarp ," the issue affects all users of the Azure Automation
Microsoft Warns of Cross-Account Takeover Bug in Azure Container Instances

Microsoft Warns of Cross-Account Takeover Bug in Azure Container Instances

Sep 10, 2021
Microsoft on Wednesday said it remediated a vulnerability in its Azure Container Instances ( ACI ) services that could have been weaponized by a malicious actor "to access other customers' information" in what the researchers described as the "first cross-account container takeover in the public cloud." An attacker exploiting the weakness could execute malicious commands on other users' containers, steal customer secrets and images deployed to the platform. The Windows maker did not share any additional specifics related to the flaw, save that  affected customers  "revoke any privileged credentials that were deployed to the platform before August 31, 2021." Azure Container Instances is a managed service that allows users to run Docker  containers  directly in a serverless cloud environment, without requiring the use of virtual machines, clusters, or orchestrators. Palo Alto Networks' Unit 42 threat intelligence team dubbed the vulnerabilit
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