Hacktricks 179

Since .jar files are Java archives, we can inspect their contents. We can use jd-gui (Java Decompiler) or simply extract the archive to view the class files.

First, let's extract the JAR:

unzip BlockyCore.jar

Inside the extracted folder, we look for .class files. We find BlockyCore.class. To read the code, we use a decompiler or strings.

Using strings:

strings BlockyCore.class

Output Snippet:

// Decompiled code roughly translates to:
public class BlockyCore 
    public String sqlHost = "localhost";
    public String sqlUser = "root";
    public String sqlPass = "8YsqfCTnvxAUeduzjNSXe22"; 
    // ... code continues

Vulnerability Found: We have found a hardcoded password: 8YsqfCTnvxAUeduzjNSXe22 and a username root.

If you clarify what “hacktricks 179” means to you (e.g., a specific command, vulnerability type, or scenario), I’d be glad to write a thoughtful essay on one of the following relevant topics:

First, check what privileges notch has.

sudo -l
``

Title: The Last Uncorrupted Terminal

In the neon-drenched underbelly of São Paulo, a data-ghost named Elara stared at her screen. The year was 2031. The country’s water authority, Água Viva, had been quietly bought by a conglomerate called OmniPure. Six months later, the poorest neighborhoods—the favelas—started receiving bills for water they’d always gotten for free. Then the shut-offs began.

Elara wasn’t a criminal. She was a hacktivist, the kind who read Hacktricks 179 like a bible. The page she had open right now was "Privilege Escalation via Misconfigured Cron Jobs." A classic. But tonight, it felt like scripture.

The Clue in the Logs

OmniPure’s security was a fortress. But Elara had found a crack. A forgotten API endpoint—/dev/telemetry/backup—that logged internal diagnostics. Using a simple curl injection she’d learned from Trick 47: Hidden Parameter Tampering, she pulled a log file. Inside was a goldmine: a cron job that ran every night at 2 AM as root. It executed a script called water_pressure_check.sh from a world-writable temporary directory. hacktricks 179

Trick 179: "If you can write to a cron job’s referenced path, you own the schedule."

She smiled. The system administrators had gotten lazy. They’d set the permissions to 777 for "easy debugging."

The Exploit

At 1:59 AM, Elara injected her payload into water_pressure_check.sh: Inside the extracted folder, we look for

#!/bin/bash
# Original pressure check (commented out)
# /usr/bin/measure-pressure --zone all