SAP Business Objects Unauthorized File Repository Server Write

Credit: Onapsis
Risk: Medium
Local: No
Remote: Yes

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 AdvisoryONAPSIS-2015-003: SAP Business Objects Unauthorized File Repository Server Write via CORBA 1. Impact on Business ===================== By exploiting this vulnerability a remote unauthenticated attacker would be able to overwrite sensitive business data stored on the remote system. 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-2015-003 - - Onapsis SVS ID: ONAPSIS-00109 - - CVE: CVE-2015-2074 - - 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 2018681 for detailed information on affected releases) - - Vulnerability Class: External Control of File Name or Path (CWE-73) - - Remotely Exploitable: Yes - - Locally Exploitable: No - - Authentication Required: No - - Original Advisory: 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 ======================== The BusinessObjects File Repositoy Server (FRS) CORBA listener allows the writing of any file stored in the FRS without authentication. If the attacker wishes to overwrite a file, the only requirement is that the user know the name of the file in the FRS. For example, ??€œfrs://Input/a_103/019/000/4967/1b14796c5b0d5f2c.rpt??€. With knowledge of this filename, the user can write the file remotely without authentication. Note, using CORBA it is also possible to test if a directory or file exists on the file system. Therefore, although unlikely, an attacker could guess directories and then filenames brute-forcing files to overwrite. This would be considerably easier with a predictable file naming convention. 6. Solution =========== SAP has released SAP Note 2018681 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 ================== 2014-01-16: 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 iEYEARECAAYFAlTt3w8ACgkQz3i6WNVBcDWRkACffvfY2LtFi4zyVwTpYD1dIABD X8IAoK2UVIGnUiTYzEtfm0F6dAE9xoFR =OK8R -----END PGP SIGNATURE-----


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