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

(PT-2013-21) Positive Technologies Security Advisory
XML External Entities Injection in Oracle Database

Vulnerable software

Oracle Database
Version: 11.1.0.7, 11.2.0.2, 11.2.0.3, 12.1.0.1

Link:
http://www.oracle.com/

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

Credits

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

References

http://en.securitylab.ru/lab/PT-2013-21
http://www.oracle.com/technetwork/topics/security/cpuoct2013-1899837.html

Reports on the vulnerabilities previously discovered by Positive Research:

http://www.ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/

About Positive Technologies

Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.

The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; development of the Securitylab leading Russian information security portal.

Among the clients of Positive Technologies, there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, the CIS countries, the Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, the Republic of South Africa, Thailand, Turkey, and the USA.

Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.