Bug #424: JDBC driver security issue.

Your patch has been added to the PostgreSQL unapplied patches list at:

http://candle.pha.pa.us/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

David Daney (David.Daney@avtrex.com) reports a bug with a severity of 3
The lower the number the more severe it is.

Short Description
JDBC driver security issue.

Long Description
The JDBC driver requires

permission java.lang.RuntimePermission "shutdownHooks";

in the policy file in order to function. However the driver does not protect the shutdown hooks call in an AccessController.doPrivileged() call, so these permissions must be granted to all code not just the postgres JDBC driver.

Sample Code
Here is a diff that fixes the problem.

*** ConnectionHook.java.orig	Mon Mar  5 01:17:43 2001
--- ConnectionHook.java	Thu Aug 23 16:51:49 2001
***************
*** 1,6 ****
--- 1,9 ----
package org.postgresql.core;

import java.sql.SQLException;
+ import java.security.AccessController;
+ import java.security.PrivilegedAction;
+
import java.util.ArrayList;
import java.util.Iterator;
import org.postgresql.Connection;
***************
*** 51,57 ****
*/
private ConnectionHook() {
super();
! Runtime.getRuntime().addShutdownHook(new Thread(this));
}

/**
--- 54,65 ----
*/
private ConnectionHook() {
super();
!     AccessController.doPrivileged(new PrivilegedAction() {
!           public Object run() {
!              Runtime.getRuntime().addShutdownHook(new Thread(ConnectionHook.this));
!              return null; // nothing to return
!           }
!        });
}

/**

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-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

We have removed ConnectionHook.java from the 7.2 release. It was
considered an ill-advised feature.

David Daney (David.Daney@avtrex.com) reports a bug with a severity of 3
The lower the number the more severe it is.

Short Description
JDBC driver security issue.

Long Description
The JDBC driver requires

permission java.lang.RuntimePermission "shutdownHooks";

in the policy file in order to function. However the driver does not protect the shutdown hooks call in an AccessController.doPrivileged() call, so these permissions must be granted to all code not just the postgres JDBC driver.

Sample Code
Here is a diff that fixes the problem.

*** ConnectionHook.java.orig	Mon Mar  5 01:17:43 2001
--- ConnectionHook.java	Thu Aug 23 16:51:49 2001
***************
*** 1,6 ****
--- 1,9 ----
package org.postgresql.core;

import java.sql.SQLException;
+ import java.security.AccessController;
+ import java.security.PrivilegedAction;
+
import java.util.ArrayList;
import java.util.Iterator;
import org.postgresql.Connection;
***************
*** 51,57 ****
*/
private ConnectionHook() {
super();
! Runtime.getRuntime().addShutdownHook(new Thread(this));
}

/**
--- 54,65 ----
*/
private ConnectionHook() {
super();
!     AccessController.doPrivileged(new PrivilegedAction() {
!           public Object run() {
!              Runtime.getRuntime().addShutdownHook(new Thread(ConnectionHook.this));
!              return null; // nothing to return
!           }
!        });
}

/**

No file was uploaded with this report

---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026