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From: Onapsis Research Labs (researchonapsis.com)
Date: Fri Feb 22 2013 - 15:42:07 CST
Onapsis Security Advisory 2013-002: SAP SDM Denial of Service
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1. Impact on Business
By exploiting this vulnerability, an attacker would be able to perform a sabotage attack over the service used to deploy
and change software components in the SAP AS Java.
This would prevent legitimate developers and administrators from performing and maintain required business and technical
Risk Level: Medium
2. Advisory Information
-- Public Release Date: 2013-02-21
-- Subscriber Notification Date: 2013-02-21
-- Last Revised: 2013-02-21
-- Security Advisory ID: ONAPSIS-2013-002
-- Onapsis SVS ID: ONAPSIS-00042
-- Researcher: Mariano Nunez / Jordan Santarsieri
-- Initial Base CVSS v2: 5.0 (AV:N/AC:L/AU:N/C:N/I:N/A:P)
3. Vulnerability Information
-- Vendor: SAP
-- Affected Components:
* SAP J2EE SDM
(Check SAP Note 1586419 for detailed information on affected releases)
-- Vulnerability Class: Denial of Service
-- Remotely Exploitable: Yes
-- Locally Exploitable: No
-- Authentication Required: No
-- Original Advisory: http://www.onapsis.com/resources/get.php?resid=adv_onapsis-2013-002
4. Affected Components Description
The Software Deployment Manager (SDM) is the standard tool that you use to install J2EE components on the SAP J2EE
Engine. The SDM is a client/server application. The SDM Server runs on the SAP J2EE Engine side. This server is started
automatically with the J2EE Engine. A graphical user interface is available as a client. 
5. Vulnerability Details
The SDM suffers from a design vulnerability, in the way it handles failed user authentication attempts, generating a
Denial of Service condition if some conditions are met. This can be abused by a malicious attacker to disrupt this service.
Additional technical details about this issue are not disclosed at this moment with the purpose of providing enough time
to affected customers to patch their systems and protect against the exploitation of the described vulnerability.
SAP has released SAP Note 1586419 which provide patched versions of the affected components.
The patches can be downloaded from https://service.sap.com/sap/support/notes/1586419.
Onapsis strongly recommends SAP customers to download the related security fixes and apply them to the affected
components in order to reduce business risks.
7. Report Timeline
2011-01-24: Onapsis provides vulnerability information to SAP.
2011-08-09: SAP releases security patches.
2013-02-21: Onapsis notifies availability of security advisory to security mailing lists.
About Onapsis Research Labs
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With that objective in mind, a special unit ? the Onapsis Research Labs ? has been developed since the creation of the
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published many of the public security vulnerabilities in these platforms.
The outcome of this advanced and cutting-edge research is continuously provided to the Onapsis Consulting and
Development teams, improving the quality of our solutions and enabling our customers to be protected from the latest
risks to their critical business information.
Furthermore, the results of this research projects are usually shared with the general security and professional
community, encouraging the sharing of information and increasing the common knowledge in this field.
Onapsis is the leading provider of solutions for the security of ERP systems and business-critical applications. Through
different innovative products and services, Onapsis helps its global customers to effectively increase the security
level of their core business platforms, protecting their information and decreasing financial fraud risks.
Onapsis is built upon a team of world-renowned experts in the SAP security field, with several years of experience in
the assessment and protection of critical platforms in world-wide customers, such as Fortune-100 companies and
Our star product, Onapsis X1, enables our customers to perform automated Security & Compliance Audits, Vulnerability
Assessments and Penetration Tests over their SAP platform, helping them enforce compliance requirements, decrease
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