Another PS4 Kernel Exploit for 7.55? - ModChat 070

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4 years ago
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TheFloW returns yet again with a second PS4 related disclosure through HackerOne, this time being a limited disclosure as opposed to a full disclosure. Although details are a bit scarce this time around, I explain why I believe with an educated guess this disclosed kernel exploit looks to be present up to firmware 7.55! We also briefly discuss a new permanent UART solution released for the PS4, something awesome for developers and debuggers with jailbroken PS4 consoles!

#ModChat

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Timestamps!

0:00 - Introduction
1:32 - TheFloW Strikes Again!
19:58 - Update or Not?
22:46 - PS4 Permanent UART Release

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Sources Cited (All Used With Fair Use In Mind)

TheFloW discloses Kernel exploit for firmware 7.55:
https://wololo.net/2021/01/13/ps4-hacker-theflow-discloses-kernel-exploit-for-firmware-7-55/

7.55 Limited Disclosure on HackerOne:
https://hackerone.com/reports/943231

6.72/7.02 Disclosure on HackerOne:
https://hackerone.com/reports/826026

Disclosure on Google's GitHub:
https://github.com/google/security-research/security/advisories/GHSA-gxcr-cw4q-9q78

PS4 Firmware Update History:
https://www.xtremeps3.com/ps4-firmware-history/

WebKit exploit released for 6.xx, could potentially work on 7.xx:
https://wololo.net/2020/12/12/ps4-webkit-exploit-released-for-6-xx-could-potentially-work-on-7-xx/

PS4 Permanent UART by JTAG7171:
https://github.com/JTAG7371/ps4-permanent-uart

PS4 UART Installation by MODDED WARFARE:
https://youtu.be/5gkQJJbQaeU

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