PT-2013-21: XML External Entities Injection in Oracle Database

Vulnerable software

Oracle Database


Severity level

Severity level: Medium
Impact: Internal Network Resources Access, Denial of Service
Access Vector: Remote

CVSS v2:
Base Score: 6.4
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVE: CVE-2013-5771

Software description

The Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is an object-relational database management system produced and marketed by Oracle Corporation.

Vulnerability description

The specialists of the Positive Research center have detected an XML External Entities Injection vulnerability in Oracle Database.

If an attacker sends specially crafted SQL query containing malformed XML to Oracle Database server, the server will automatically send the contents of remote resources to the attacker's server. This vulnerability also allows remote attackers to perform denial of service attacks.

How to fix

Update your software up to the latest version

Advisory status

26.02.2013 - Vendor gets vulnerability details
15.10.2013 - Vendor releases fixed version and details
25.10.2013 - Public disclosure


The vulnerability was detected by Timur Yunusov, Alexey Osipov, Positive Research Center (Positive Technologies Company)


Reports on the vulnerabilities previously discovered by Positive Research: