Lab 61 — OrderNova — Negative Quantity Price Manipulation

hackadvisor

Task: E-commerce food ordering platform with wallet balance, premium item costs more than available funds. Solution: Bypassed client-side validation by sending negative quantity via API to offset total price below wallet balance.

nodejs input_validation business_logic express api price_manipulation ecommerce negative_quantity

api_manipulationbusiness_logic_bypassnegative_quantity_exploitationserver_side_validation_bypass

$ ls tags/ techniques/

nodejs input_validation business_logic express api price_manipulation ecommerce negative_quantity

api_manipulationbusiness_logic_bypassnegative_quantity_exploitationserver_side_validation_bypass

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Permission denied (requires tier.pro)

Sign in to access full writeups

$sign in

$ grep --similar

Similar writeups

[web][Pro]Lab 193 — ShopNova — Price Manipulation in Checkout API— hackadvisor
[web][Pro]Lab 175 — ShopNova — Race Condition in Coupon Redemption— hackadvisor
[web][free]Chocolate Drop— alfactf
[web][Pro]Lab 177 — CartNova — Race Condition in Coupon Redemption— hackadvisor
[web][Pro]Flag Shop— hackerlab