Join Nostr
2025-08-04 21:40:28 UTC

G :donor: :Tick: on Nostr: ๐Ÿšจ ๐—ข๐˜‚๐˜๐˜๐—ฎ๐—ง๐˜‚๐—ป๐—ฒ: ๐—ง๐—ต๐—ฒ ๐˜€๐—ผ๐—ฟ๐˜๐—ฎ, ...

๐Ÿšจ ๐—ข๐˜‚๐˜๐˜๐—ฎ๐—ง๐˜‚๐—ป๐—ฒ: ๐—ง๐—ต๐—ฒ ๐˜€๐—ผ๐—ฟ๐˜๐—ฎ, ๐—ป๐—ผ๐˜-๐—ฟ๐—ฒ๐—ฎ๐—น๐—น๐˜†, ๐—ณ๐—ถ๐˜…

Earlier this year, I disclosed a security flaw in Microsoft Intuneโ€™s Conditional Access device filtering โ€” where attackers with local admin rights could ๐™จ๐™ฅ๐™ค๐™ค๐™› ๐™™๐™š๐™ซ๐™ž๐™˜๐™š ๐™ฅ๐™ง๐™ค๐™ฅ๐™š๐™ง๐™ฉ๐™ž๐™š๐™จ like device.model to ๐™—๐™ฎ๐™ฅ๐™–๐™จ๐™จ ๐™ฅ๐™ค๐™ก๐™ž๐™˜๐™ฎ ๐™š๐™ฃ๐™›๐™ค๐™ง๐™˜๐™š๐™ข๐™š๐™ฃ๐™ฉ.

At first, it was marked โ€œ๐˜ฝ๐™ฎ ๐˜ฟ๐™š๐™จ๐™ž๐™œ๐™ฃ.โ€
Then โ€œ๐™ˆ๐™ค๐™™๐™š๐™ง๐™–๐™ฉ๐™š ๐™จ๐™š๐™ซ๐™š๐™ง๐™ž๐™ฉ๐™ฎ.โ€
Now, Microsoft says itโ€™s โ€œ๐™›๐™ž๐™ญ๐™š๐™™.โ€

๐Ÿฉน ๐—ช๐—ต๐—ฎ๐˜ ๐—ฐ๐—ต๐—ฎ๐—ป๐—ด๐—ฒ๐—ฑ?
โ€ข Documentation now warns that ๐™จ๐™ค๐™ข๐™š ๐™™๐™š๐™ซ๐™ž๐™˜๐™š ๐™ฅ๐™ง๐™ค๐™ฅ๐™š๐™ง๐™ฉ๐™ž๐™š๐™จ ๐™–๐™ง๐™š ๐™ช๐™ฃ๐™ฉ๐™ง๐™ช๐™จ๐™ฉ๐™š๐™™
โ€ข UX nudges were added in the CA policy editor and dashboard
โ€ข My name will appear in the MSRC researcher acknowledgements

๐Ÿ” ๐—ช๐—ต๐—ฎ๐˜ ๐—ฑ๐—ถ๐—ฑ๐—ปโ€™๐˜ ๐—ฐ๐—ต๐—ฎ๐—ป๐—ด๐—ฒ?
โ€ข ๐™‰๐™ค ๐™ฉ๐™š๐™˜๐™๐™ฃ๐™ž๐™˜๐™–๐™ก ๐™˜๐™ค๐™ฃ๐™ฉ๐™ง๐™ค๐™ก๐™จ prevent tampering
โ€ข Attackers can still ๐™ข๐™ค๐™™๐™ž๐™›๐™ฎ ๐™ง๐™š๐™œ๐™ž๐™จ๐™ฉ๐™ง๐™ฎ ๐™ซ๐™–๐™ก๐™ช๐™š๐™จ and pass Conditional Access checks
โ€ข ๐˜ฟ๐™š๐™ซ๐™ž๐™˜๐™š ๐™ฉ๐™ง๐™ช๐™จ๐™ฉ ๐™ž๐™จ ๐™จ๐™ฉ๐™ž๐™ก๐™ก ๐™ฌ๐™ง๐™ž๐™ฉ๐™–๐™—๐™ก๐™š ๐™—๐™ฎ ๐™ฉ๐™๐™š ๐™™๐™š๐™ซ๐™ž๐™˜๐™š

New blog post here โ†’
๐Ÿ”— https://cirriustech.co.uk/blog/outtatune-tunedout/

If you rely on Intune or Entra for Zero Trust enforcement, ๐—ฟ๐—ฒ๐—ฎ๐—ฑ ๐˜๐—ต๐—ถ๐˜€.
And maybeโ€ฆ stop trusting the registry.

#Microsoft #Intune #Entra #ConditionalAccess #EndpointSecurity #OuttaTune #CyberSecurity #Bypass #ZeroTrust #DefenseEvasion