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New CTI Lab: CVE-2025-33073 (SMB Elevation of Privilege): Defensive

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benhopkins
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5 days ago

Today, Immersive's Container 7 Research Team have released a new CTI lab covering a recent vulnerability listed in Microsoft's June patch Tuesday which allows attackers to elevate their privileges by abusing SMB and NTLM authentication mechanisms.

Another vulnerability patched was released during Microsoft's June 2025 patch Tuesday review! An important elevation of privilege vulnerability was listed, and if exploited successfully, attackers can achieve elevation of privilege on the compromised machine.

Even though it's not recorded to have been exploited in the wild as yet, the fact that research exists with details on how the vulnerability was found improves the chances an attacker will attempt to exploit this flaw against a victim.In these labs, you will be taken through the vulnerability from both an offensive and defensive perspective.

Why should our customers care?

This is a new vulnerability that has just been patched, and is has in depth research released about it. Successful exploitation of this vulnerability allows attackers to elevate their privileges and achieve command execution on a victim machine. Learn what sort of indicators this exploit leaves, but also learn how to execute and take advantage of this vulnerability!

Who is it for?

  • Incident responders
  • SOC analyst
  • Threat Hunters
  • Red Teamer
  • Penetration Testers

Here is the link to the labs:

Defensive: https://immersivelabs.com/v2/labs/cve-2025-33073-smb-elevation-of-privilege-defensive

Offensive: https://immersivelabs.com/v2/labs/cve-2025-33073-smb-elevation-of-privilege-offensive

Container 7 Release 

We have released a threat detection for this particular vulnerability, helping the community to protect against any potential use of this vulnerability. https://github.com/Immersive-Labs-Sec/SigmaRules/blob/main/cve-2025-33073-smb-exploit.yml

Updated 5 days ago
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