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[Onapsis Security Advisory 2014-026] Missing authorization check in function modules of BW-SYS-DB-DB4

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Onapsis Security Advisory 2014-026: Missing authorization check in
function modules of BW-SYS-DB-DB4

This advisory can be downloaded in PDF format from http://www.onapsis.com/.

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1. Impact on Business

By exploiting this vulnerability a remote authenticated attacker would
be able to perform activities for which he is not authorized.

Risk Level: Low

2. Advisory Information

- - Public Release Date: 2014-07-29

- - Subscriber Notification Date: 2014-07-29

- - Last Revised: 2014-07-25

- - Security Advisory ID: ONAPSIS-2014-026

- - Onapsis SVS ID: ONAPSIS-00114

- - Researcher: Nahuel D. Sánchez    

- - Initial Base CVSS v2:  3.5 (AV:N/AC:M/AU:S/C:P/I:N/A:N)

3. Vulnerability Information

- - Vendor: SAP

- - Affected Components:
  - SAP Netweaver Business Warehouse component.
   (Check SAP Note 1974016 for detailed information on affected releases)

- - Vulnerability Class: Improper Access Control (CWE-284)

- - Remotely Exploitable: Yes

- - Locally Exploitable: No

- - Authentication Required: Yes

- - Original Advisory:

4. Affected Components Description

SAP BW-SYS-DB-DB4 component contains a remote-enabled RFC function that
does not perform authorization checks prior to retrieving sensitive

5. Vulnerability Details

A remote authenticated attacker could execute the vulnerable RFC
functions in function group     BW-SYS-DB-DB4. These do not check for
authorizations and thus allowing the attacker to obtain sensitive
information regarding the target application server.

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

6. Solution

SAP has released SAP Note 1974016 which provides patched versions of the
affected components.

The patches can be downloaded from

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

2014-01-20: Onapsis provides vulnerability information to SAP AG.
2014-01-21: SAP confirms having the information of vulnerability.
2014-04-08: SAP releases security patches.
2014-07-29: Onapsis notifies availability of security advisory.

About Onapsis, Inc.

Onapsis provides innovative security software solutions to protect ERP
systems from cyber-attacks. Through unmatched ERP security, compliance
and continuous monitoring products, Onapsis secures the
business-critical infrastructure of its global customers against
espionage, sabotage and financial fraud threats.

Onapsis X1, the company's flagship product, is the industry's first
comprehensive solution for the automated security assessment of SAP
platforms. Being the first and only SAP-certified solution of its kind,
Onapsis X1 allows customers to perform automated Vulnerability
Assessments, Security & Compliance Audits and Penetration Tests over
their entire SAP platform.

Onapsis is backed by the Onapsis Research Labs, a world-renowned team of
SAP & ERP security experts who are continuously invited to lecture at
the leading IT security conferences, such as RSA and BlackHat, and
featured by mainstream media such as CNN, Reuters, IDG and New York Times.

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Comment: Onapsis Research Team