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SAP Business Objects Unauthorized Audit Information Delete

SAP Business Objects Unauthorized Audit Information Delete
Posted Feb 25, 2015
Authored by Will Vandevanter | Site onapsis.com

Onapsis Security Advisory - It is possible for an unauthenticated user to remove audit events from a remote BusinessObjects service using CORBA. Specifically, the attacker can tell the remote service (i.e. the auditee) to clear an event from it's queue. After the event is removed from the auditee queue, the auditor will never have knowledge of the event and, hence, it will not be written to the Audit database. An attacker can use this to hide their actions. By default, the auditor polls all auditees every 5 minutes to ask for events in their queue.

tags | advisory, remote
advisories | CVE-2015-2075
MD5 | 00e35f4f7ad2aee3bacb5b10238b7643

SAP Business Objects Unauthorized Audit Information Delete

Change Mirror Download

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Onapsis Security Advisory ONAPSIS-2015-004: SAP Business Objects
Unauthorized Audit Information Delete via CORBA


1. Impact on Business
=====================

By exploiting this vulnerability a remote unauthenticated attacker would be
able to delete auditing information of the remote system.

This way, the attacker could perform malicious activities without being
detected.

Risk Level: High


2. Advisory Information
=======================

- - Public Release Date: 2015-02-25

- - Subscriber Notification Date: 2015-02-25

- - Last Revised: 2015-02-25

- - Security Advisory ID: ONAPSIS-2015-004

- - Onapsis SVS ID: ONAPSIS-00112

- - CVE: CVE-2015-2075

- - Researcher: Will Vandevanter

- - Initial Base CVSS v2: 6.4 (AV:N/AC:L/AU:N/C:N/I:P/A:P)


3. Vulnerability Information
============================

- - Vendor: SAP

- - Affected Components:
- BussinessObjects Edge 4.0
(Check SAP Note 2011396 for detailed information on affected releases)

- - Vulnerability Class: Improper Authorization (CWE-285)

- - Remotely Exploitable: Yes

- - Locally Exploitable: No

- - Authentication Required: No

- - Original Advisory:
http://www.onapsis.com/esearch/security-advisories/sap-business-objects-unauthorized-audit-information-delete-via-corba


4. Affected Components Description
==================================

Business Objects is part of the Business Intelligence platform from SAP.
It has components that provide performance management, planning,
reporting, query and analysis and enterprise information management.

Every Business Objects installation provides a web service to interact
with different platform services.


5. Vulnerability Details
========================

It is possible for an unauthenticated user to remove audit events from a
remote BusinessObjects service using CORBA. Specifically, the attacker
can tell the remote service (i.e. the auditee) to clear an event from
it's queue. After the event is removed from the auditee queue, the
auditor will never have knowledge of the event and, hence, it will not
be written to the Audit database. An attacker can use this to hide their
actions. By default, the auditor polls all auditees every 5 minutes to
ask for events in their queue.

Note, this vulnerability does not allow an attacker to remove events
already written to the database. It only allows events waiting in the
auditee queue to be removed. The clearData CORBA operation is used to
remove the event; authentication is not required.


6. Solution
===========

SAP has released SAP Note 2011396 which provides patched versions of the
affected components.

The patches can be downloaded from
https://service.sap.com/sap/support/notes/2011396

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
==================

2014-01-16: Onapsis provides vulnerability information to SAP AG.
2014-02-17: SAP confirms having the information of vulnerability.
2014-10-14: SAP releases security patches.
2015-02-25: Onapsis releases security advisory.


About Onapsis Research Labs
===========================

Onapsis Research Labs provides the industry analysis of key security
issues that impact business-critical systems and applications.
Delivering frequent and timely security and compliance advisories with
associated risk levels, Onapsis Research Labs combine in-depth knowledge
and experience to deliver technical and business-context with sound
security judgment to the broader information security community.


About Onapsis, Inc.
===================

Onapsis gives organizations the adaptive advantage to succeed in
securing business-critical applications by combining technology,
research and analytics. Onapsis enables every security and compliance
team an adaptive approach to focus on the factors that matter most to
their business–-critical applications that house vital data and run
business processes including SAP Business Suite, SAP HANA and SAP Mobile
deployments.

Onapsis provides technology solutions including Onapsis X1, the de-facto
SAP security auditing tool, and Onapsis Security Platform which delivers
enterprise vulnerability, compliance, detection and response
capabilities with analytics.

The Onapsis Research Labs provide subject matter expertise that combines
in-depth knowledge and experience to deliver technical and
business-context with sound security judgment. This enables
organizations to efficiently uncover security and compliance gaps and
prioritize the resolution within applications running on SAP platforms.

Onapsis delivers tangible business results including decreased business
risk, highlighted compliance gaps, lower operational security costs and
demonstrable value on investment.
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