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Files from Sudhanshu Kumar

Polkit Authentication Bypass / Local Privilege Escalation

Posted Nov 29, 2021

Authored by Sudhanshu Kumar, Rohit Verma, Sonam Nagar

This whitepaper provides an overview of a Polkit authentication bypass vulnerability that allows for local privilege escalation.

tags | exploit, paper, local, bypass

advisories | CVE-2021-3560

SHA-256 | 93e86eaad4a245a57200302487bb9941411bfdb877a212d1a63b777283e5ebdb

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Ubuntu OverlayFS Local Privilege Escalation

Posted May 31, 2021

Authored by Chris Wild, Sudhanshu Kumar, Rohit Verma

The document in this archive illustrates using the included proof of concept exploit to achieve root on Ubuntu systems using a flaw in the OverlayFS file system. The exploit itself does not have author attribution as the proof of concept came through SSD Disclosures.

tags | exploit, paper, root, proof of concept

systems | linux, ubuntu

advisories | CVE-2021-3493

SHA-256 | 7380c1055909d23c493abb4f5067d3428e536c6a0041025856be420b9c8732fb

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