SAP Business Objects Unauthorized Audit Information Delete

2015.02.26
Credit: Onapsis
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-285


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Onapsis Research Team iEYEARECAAYFAlTt3yEACgkQz3i6WNVBcDVbuACfXRTcTc+4MiUKl60VHRJaN1UR 88AAoNbTMG4RaqtFA0eXT7HGdTL4anuM =VndN -----END PGP SIGNATURE-----

References:

https://service.sap.com/sap/support/notes/2011396


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