We are back, and talking about our summer with a lengthy discussion about our DEF CON experiences before getting into some favorite issues from the summer. Including a neat twist on a PHP security feature that might be using in your bug bounty chains. A look at classic crypto issue (unauthenticated encrypted blobs), and an easily missed caching issue.

Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/215.html

[00:00:00] Introduction

[00:02:15] Summer Recap - HardwearIO

[00:11:51] Summer Recap - DEF CON

[00:49:20] CVE-2020-19909 is everything that is wrong with CVEs

[00:58:40] PHP servers drop any header if the header has "\r" [@OctagonNetworks]

[01:03:10] Encrypted Doesn't Mean Authenticated: ShareFile RCE [CVE-2023-24489]

[01:11:40] How Private Cache Can Lead to Mass Account Takeover

[01:15:20] From Terminal Output to Arbitrary Remote Code Execution

[01:16:37] Mashing Enter to bypass full disk encryption with TPM, Clevis, dracut and systemd

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

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

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

We are also available on the usual podcast platforms:

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

-- Spotify: https://open.spotify.com/show/4NKCxk8aPEuEFuHsEQ9Tdt

-- Google Podcasts: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hMTIxYTI0L3BvZGNhc3QvcnNz

-- Other audio platforms can be found at https://anchor.fm/dayzerosec

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

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2023/09/26 00:57:09 [1] Set Start Time and Offset

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2023/09/26 00:57:11 215 - DEF CON, HardwearIO, Broken Caching, and Dropping Headers [Bug Bounty Podcast]

[bounty] DEF CON, HardwearIO, Broken Caching, and Dropping Headers

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