Executive Risk Summary
"The Himmelblau interoperability suite for Microsoft Azure Entra ID and Intune has a vulnerability where it stores the cloud TGT received during logon in the Kerberos credential cache as world readable. This issue is fixed in versions 0.9.22 and 1.2.0, and a workaround is to remove all read access to Himmelblau caches for all users except for owners."
Operational Audit Arsenal
Target Type Credential Cache
Target Asset Kerberos credential cache
Standard Path %userprofile%\AppData\Local\Himmelblau\cache
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Kerberos credential cache (Credential Cache)
$Targets = 'Kerberos credential cache'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")
Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue |
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}Patch Impact Forecast
Reboot Required Unlikely
Authentication services may be affected
Internal Work Notes
Apply Himmelblau version 0.9.22 or 1.2.0 to mitigate vulnerability, or restrict read access to credential caches as a temporary workaround.
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/commit/b562053df3dffb1dd9ab3d09af986886773be2ad
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/commit/faae58b0384aca8b21b4be5f1c507412eec3778a
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/releases/tag/0.9.22
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/releases/tag/1.2.0
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-phfx-rjfw-wj83
Official Advisoryhttps://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-phfx-rjfw-wj83
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.