webPromedium

Fragment JSON

web-kids20

Web application for processing payments (similar to d21, but with JSON). The system validates that the sender equals "me". User input in the "comment" field is inserted into JSON without escaping.

json injection payment_bypass fragment_injection

payment_forgeryjson_fragment_injection

$ ls tags/ techniques/

json injection payment_bypass fragment_injection

payment_forgeryjson_fragment_injection

Analysis

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$ 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.

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