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Cloud

1 MIN READ

Quick Hits



MICROSOFT AZURE SHARED KEY MISCONFIGURATION COULD LEAD TO RCE

Azure admins are urged to disable shared key access and implement Azure Active
Directory authentication.
Becky Bracken
Editor, Dark Reading
April 11, 2023
Source: SOPA Images Limited via Alamy Stock Photo
PDF


Abuse of shared key authorizations, a default on Azure storage accounts, could
allow a threat actor to steal higher privileged access tokens, move laterally
throughout the network, and execute remote code (RCE).



Researchers at Orca were able to demonstrate how an attacker could breach
Microsoft Storage Accounts, but Microsoft's Security Response Center (MSRC)
chalked it up to a misconfiguration rather than a vulnerability. MRSC did offer
guidance to users to appropriately configure Azure Functions and "effectively
deploy environments with the least privilege." The company said it is planning
to address the issue as part of its regular "experience improvements."

Orca researchers urge IT teams to take the issue seriously, and added that even
though Microsoft doesn't consider the potential privilege escalation a
vulnerability, "This does not mean that it is less dangerous," Orca's report
said. "Actually, it should be considered even more dangerous since there is no
straightforward 'fix'."

Administrators are advised by Microsoft to:


 1. Review user permissions to ensure least-privilege access
 2. Monitor logs for account key access
 3. Consider using a storage account dedicated to application code blob storage
 4. Enable Microsoft Defender for Cloud (MDC) on storage accounts

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