webPromedium

Magic Link 3

bluehensctf

Task: a Magic Link Login Service where POST /login leaks the magic-link UUID in the JSON response. Solution: request a login link for [email protected], extract the UUID from the response, visit /login/<uuid> to authenticate as admin, access /dashboard to retrieve the flag.

authentication_bypass information_disclosure magic_link uuid_leak api_response_leak account_takeover

magic_link_uuid_extractionauthentication_token_reuseadmin_account_takeover

$ ls tags/ techniques/

authentication_bypass information_disclosure magic_link uuid_leak api_response_leak account_takeover

magic_link_uuid_extractionauthentication_token_reuseadmin_account_takeover

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

$ cat writeup.md…

Sign in to access full writeups

Sign in to access full writeups

Similar writeups