Podcasts Technology Day[0] [bounty] OverlayFS to Root and Parallels Desktop Escapes

[bounty] OverlayFS to Root and Parallels Desktop Escapes

Published: May 16, 2023, 8 p.m.

More bug bounty style bugs, but you'd be forgiven reading that title thinking we had a low-level focus this episode. We got some awesome bugs this week though from tricking Dependabot and abusing placeholder values, an IIS auth bypass. Ending off with a kernel bug (OverlayFS) and a VM escape (Parallels Desktop)

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Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/211.html

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[00:00:00] Introduction

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[00:00:28] Dependabot Confusion: Gaining Access to Private GitHub Repositories using Dependabot

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[00:12:39] Placeholder for Dayzzz: Abusing placeholders to extract customer informations

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[00:19:40] Bypass IIS Authorisation with this One Weird Trick - Three RCEs and Two Auth Bypasses in Sitecore 9.3

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[00:33:44] PwnAssistant - Controlling /home's via a Home Assistant RCE

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[00:39:26] The OverlayFS vulnerability [CVE-2023-0386]

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[00:44:01] Escaping Parallels Desktop with Plist Injection

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The DAY[0] Podcast episodes are streamed live on Twitch twice a week:

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-- Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities

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-- Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities and exploits.

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We are also available on the usual podcast platforms:

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-- Apple Podcasts: https://podcasts.apple.com/us/podcast/id1484046063

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You can also join our discord: https://discord.gg/daTxTK9

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#BugBounty #BugHunting #InfoSec #CyberSec #Podcast