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CVE-2023-52927 — Local privilege escalation exploit for CVE-2023-52927, a Use-After-Free vulnerability in the Linux kernel netfilter subsystem, with a KASAN trigger reproducer and detailed write-up. | Kitploit
Tools/GitHubGitHub/seadragnol/cve-2023-52927
Privilege EscalationVulnerability AnalysisExploitationCTFBinary Exploitation
GitHubseadragnol/cve-2023-52927

CVE-2023-52927

Local privilege escalation exploit for CVE-2023-52927, a Use-After-Free vulnerability in the Linux kernel netfilter subsystem, with a KASAN trigger reproducer and detailed write-up.

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91111 year agoNot yet reviewed

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CVE-2023-52927

LPE exploit for CVE-2023-52927 - a Use-After-Free vulnerability in netfilter.

My write-up of the vulnerability: CVE-2023-52927 - Turning a Forgotten Syzkaller Report into kCTF Exploit

Reproducer: KASAN trigger poc

Building

Install dependencies:

make prerequisites

Build exploit:

make exploit

Target

kCTF cos-109-17800.436.33 machine:

  • Kernel image (bzImage): https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/bzImage
  • Kernel image (vmlinux): https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/vmlinux.gz
  • Kernel config: https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/.config
    • -> derived from COS config: https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/lakitu_defconfig
  • Source code info: https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/COMMIT_INFO
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