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https://a13xp0p0v.github.io/2021/08/25/lkrg-bypass.html

Improving the exploit for CVE-2021-26708 in the Linux kernel to bypass LKRG

This is the follow-up to my research described in the article "Four Bytes of Power: Exploiting CVE-2021-26708 in the Linux kernel." My PoC exploit for CVE-2021-26708 had a very limited facility for privilege escalation, and I decided to continue my experiments with that vulnerability. This article describes how I improved the exploit, added a full-power ROP chain, and implemented a new method of bypassing the Linux Kernel Runtime Guard (LKRG).



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Improving the exploit for CVE-2021-26708 in the Linux kernel to bypass LKRG

https://a13xp0p0v.github.io/2021/08/25/lkrg-bypass.html

This is the follow-up to my research described in the article "Four Bytes of Power: Exploiting CVE-2021-26708 in the Linux kernel." My PoC exploit for CVE-2021-26708 had a very limited facility for privilege escalation, and I decided to continue my experiments with that vulnerability. This article describes how I improved the exploit, added a full-power ROP chain, and implemented a new method of bypassing the Linux Kernel Runtime Guard (LKRG).



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https://a13xp0p0v.github.io/2021/08/25/lkrg-bypass.html

Improving the exploit for CVE-2021-26708 in the Linux kernel to bypass LKRG

This is the follow-up to my research described in the article "Four Bytes of Power: Exploiting CVE-2021-26708 in the Linux kernel." My PoC exploit for CVE-2021-26708 had a very limited facility for privilege escalation, and I decided to continue my experiments with that vulnerability. This article describes how I improved the exploit, added a full-power ROP chain, and implemented a new method of bypassing the Linux Kernel Runtime Guard (LKRG).

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      This is the follow-up to my research described in the article "Four Bytes of Power: Exploiting CVE-2021-26708 in the Linux kernel." My PoC exploit for CVE-2021-26708 had a very limited facility for privilege escalation, and I decided to continue my experiments with that vulnerability. This article describes how I improved the exploit, added a full-power ROP chain, and implemented a new method of bypassing the Linux Kernel Runtime Guard (LKRG).
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