PrestaShop Hash

What is PrestaShop?

PrestaShop’s password hashing mechanism is not a standalone cryptographic algorithm but rather a legacy implementation derived from the older **MD5-based hashing scheme**, later modified with a basic iteration count to mitigate brute-force attacks. Originally introduced in early versions of the PrestaShop e-commerce platform (pre-1.6), this format was designed as a pragmatic solution to secure user credentials within a PHP-based framework. Its structure consists of a **prefixed string** (e.g., `$P$` or `$H$`) followed by a salted hash of the password, typically using **MD5 or SHA1** with a variable iteration count (e.g., `1000` or `2000`). The salt is concatenated with the password before hashing, though its length and randomness are inconsistent, often derived from a simple counter or fixed substring. This format was intended to prevent rainbow table attacks by obfuscating plaintext passwords but lacked modern cryptographic rigor, relying instead on computational overhead to deter brute-force attempts.

The vulnerability of PrestaShop’s hashing stems from its reliance on **weak underlying primitives (MD5/SHA1), predictable iteration counts, and no proper salting methodology**. MD5 and SHA1 are now considered **cryptographically broken**, susceptible to collision attacks and precomputed rainbow tables due to their 128-bit output space. The iteration count, though intended to slow down attacks, is often hardcoded or trivial (e.g., `1000` iterations), making it easily bypassed with optimized GPU-based cracking tools like **Hashcat** or **John the Ripper**. Additionally, the salt—if present—may be derived from a non-cryptographic source (e.g., `$P$1$`) or reused across hashes, enabling **dictionary attacks** and **salting rollback techniques**. Modern hardware acceleration (e.g., CUDA/FPGA) further exacerbates the problem, allowing attackers to crack hashes at rates exceeding **millions per second**, rendering the scheme effectively obsolete for real-world security.

Identifying PrestaShop Hashes

Identifying a hash blindly is often difficult because multiple algorithms can output strings of the exact same length. For example, a standard 32-character hexadecimal string could be MD5, NTLM, MD4, or LM. To definitively identify PrestaShop, security researchers analyze the hash against a strict regular expression (regex) signature (shown above) to find structural matches.

How to Crack PrestaShop

If you need to recover the plaintext password for a PrestaShop hash during a penetration test or forensics investigation, you must supply the correct module ID to your cracking software. Use the exact commands provided at the top of this page to target the hash successfully.