Oracle Database Two Security Issues

SECUNIA ADVISORY ID: SA38353

VERIFY ADVISORY: http://secunia.com/advisories/38353/

DESCRIPTION: David Litchfield has reported two security issues in Oracle Database, which can be exploited by malicious users to gain escalated privileges and compromise a vulnerable system.

1) Access to procedures within the “DBMS_JVM_EXP_PERMS” package is not restricted, which can be exploited to modify the Java policy table via the “IMPORT_JVM_PERMS” procedure.

This can be exploited to e.g. execute arbitrary operating system commands.

2) An error in the argument handling of the “DBMS_JAVA.SET_OUTPUT_TO_JAVA” procedure can be exploited to execute SQL commands as the SYS user.

This can be exploited to gain DBA user privileges.

NOTE: Successful exploitation allows bypassing Oracle Label Security.

SOLUTION: Grant only trusted users access to the application.

PROVIDED AND/OR DISCOVERED BY: David Litchfield

ORIGINAL ADVISORY: https://media.blackhat.com/bh-dc-10/video/Litchfield_David/BlackHat-DC-2010-Litchfield-Oracle11g-video.m4v

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