Vulnerability Alert

Oracle Database Server CREATE TABLE Remote Privilege Escalation Vulnerability

 
Threat Type:CWE-264: Permissions, Privileges, and Access Control
IntelliShield ID:19241
Version:1
First Published:2009 October 22 15:24 GMT
Last Published:2009 October 22 15:24 GMT
Port: Not available
Urgency:Unlikely Use
Credibility:Highly Credible
Severity:Moderate Damage
CVSS Base:6.5 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.6
 
Version Summary:

Oracle Database Server contains a vulnerability that could allow an authenticated, remote attacker to execute arbitrary code as the OSDBA user.? Updates are not available.

 
 
Description

Oracle Database Server contains a vulnerability that could allow an authenticated, remote attacker to execute arbitrary code as the OSDBA user.

The vulnerability is due to a design error in the database.  An attacker with EXECUTE permissions on a directory and CREATE TABLE privileges could exploit this vulnerability to execute arbitrary code with OSDBA privileges.  The attacker could also run commands on the underlying operating system with the privileges of the Database Server process.  Exploitation could lead to a full compromise of the affected database.

Functional exploit code is publicly available.

Oracle has not confirmed this vulnerability and updated software is not available.

 
Warning Indicators

Oracle Database Server version 11.1.0.7.0 is vulnerable

 
IntelliShield Analysis

The vulnerability can be exploited only by an authenticated attacker with the CREATE TABLE privilege.  The attacker must have access to a directory that has EXECUTE privileges on it and privileges to use UTL_FILE, which is assigned to PUBLIC by default.

 
Vendor Announcements

Vendor announcements are not available.

 
Impact

An authenticated, remote attacker could exploit this vulnerability to execute commands on the underlying operating system with the privileges of the database user.? The attacker could also execute arbitrary code on the database with OSDBA privileges.

 
Technical Information

The vulnerability is due to a weakness in the implementation of the UTL_FILE object.  An attacker with access to a directory with EXECUTE privileges could use UTL_FILE to create a script file on the operating system in that directory.  Th attacker could execute the script by the use of the CREATE TABLE privilege.  In this way, the attacker can execute operating system commands with the privileges of the database user.  The attacker could use such a script to obtain OSDBA privileges, resulting in privilege escalation.

 
Safeguards

Administrators are advised to contact the vendor regarding future updates and releases.

Administrators may consider revoking the PUBLIC privileges on UTL_FILE.

Administrators are advised to monitor affected systems for signs of suspicious activities.

 
Patches/Software

Patches and software updates are not available.

 
Alert History
 

Initial Release



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Oracle CorporationOracle Database Server 11g 11.1 .0.7.0

Associated Products:
N/A




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