Proving Grounds Writeups

110 writeups 44× Easy 4× Medium 8× Hard

Difficulty

Tag

Access

Sort

Tag: kernel-exploit Clear all

Showing 1–3 of 3

Intermediate Windows

Billyboss Writeup - Proving Grounds

Intermediate Windows box where a guessed Sonatype Nexus Repository Manager login leads to an authenticated remote code execution exploit, and the unpatched SMBGhost (CVE-2020-0796) SMBv3 kernel exploit then escalates to SYSTEM.

rce sonatype-nexus smb privilege-escalation +2

The Husky Hacker • Oct 8, 2026 • 3 min read

Intermediate Linux

ZenPhoto Writeup - Proving Grounds

Intermediate Linux box running an outdated Zenphoto gallery with a public RCE exploit for a www-data shell, escalated to root through a CVE-2010-3904 kernel exploit in the RDS protocol.

rce zenphoto kernel-exploit privilege-escalation +1

The Husky Hacker • Oct 8, 2026 • 2 min read

Easy Linux

CyberSploit1 Writeup - Proving Grounds

Easy Linux box leaking a username in an HTML comment and a base64-encoded password in robots.txt, used to SSH in as itsskv, then escalating to root with the overlayfs kernel exploit on an outdated 3.13 kernel.

privilege-escalation kernel-exploit information-disclosure base64

The Husky Hacker • Oct 6, 2026 • 2 min read

Other platforms

HackTheBox 92 TryHackMe 10 All writeups