SAP HANA TrexNet Command Execution

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

CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Onapsis Security Advisory 2015-024-040: SAP HANA TrexNet Vulnerabilities 1. Impact on Business ===================== By exploiting these vulnerabilities, an unauthenticated attacker could execute arbitrary operating system commands, gaining full control of the HANA platform; read, write and delete sensitive business information or perform a denial of service by completely shutting down the SAP HANA instance. Risk Level: Critical 2. Advisory Information ======================= - - Public Release Date: 11/09/2015 - - Last Revised: 11/09/2015 - - Security Advisory ID: ONAPSIS-2015-024-040 - - Onapsis SVS ID: ONAPSIS-00188 - 00191, 00193 - 00202] - - CVE: CVE-2015-7828 - - Researcher: Juan Perez-Etchegoyen, Sergio Abraham, Nahuel D. Snchez - - Vendor Provided CVSS v2: 6.6 (AV:N/AC:H/Au:N/C:P/I:P/A:C) - - Onapsis CVSS v2: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C) - - Onapsis CVSS v3: 9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) 3. Vulnerability Information ============================ - - Vendor: SAP AG - - Affected Components: - SAP HANA Database 1.00 SPS10 or lower - - Vulnerability Class: Missing Authentication for Critical Function (CWE-306) - - Remotely Exploitable: Yes - - Locally Exploitable: No - - Authentication Required: No - - Original Advisories Available at: 4. Affected Components Description ================================== SAP HANA is a platform for real-time business. It combines database, data processing, and application platform capabilities in-memory. The platform provides libraries for predictive, planning, text processing, spatial and business analytics. 5. Vulnerability Details ======================== Using the multiple methods available in the TrexNet protocol, a remote unauthenticated attacker could execute arbitrary operating system commands, python modules, read, write and delete files and directories, read environment information and also completely shut down the SAP HANA instance. The attacker could also send TMS queries to the NameSever component, which could allow him to retrieve technical information of the remote system such as configuration files. All methods are executed with the <sid>adm user. To perform these actions, the attacker only needs to be able to send a crafted packet to any of the following ports (Being NN the instance number of the SAP HANA Application Server): NameServer: 3NN01 Preprocessor: 3NN02 IndexServer: 3NN03 StatisticsServer: 3NN05 WebDispatcher: 3NN06 XSEngine: 3NN07 CompileServer: 3NN10 The methods available are: fcopydir, fmkdir, frmdir, getenv, dumpenv, fcopy, fput, fdel, fmove, fget, fappend, fdir, getTraces, kill, pexec, stop, pythonexec. 6. Solution =========== Implement the steps described in SAP Security Note 2165583. 7. Report Timeline ================== * 04/02/2015: Onapsis provides vulnerability information to SAP AG. * 04/03/2015: SAP AG confirms reception of vulnerability report. * 04/14/2015: SAP reports fix is In Process. * 05/12/2015: SAP reports fix is In Process. * 06/09/2015: SAP reports fix is In Process. * 07/14/2015: SAP reports fix is In Process. * 08/11/2015: SAP releases SAP Security Note 2165583 fixing the vulnerability. * 11/09/2015: 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 provides the most comprehensive solutions for securing SAP and Oracle enterprise applications. As the leading experts in SAP and Oracle cyber-security, Onapsis? enables security and audit teams to have visibility, confidence and control of advanced threats, cyber-risks and compliance gaps affecting their enterprise applications. Headquartered in Boston, Onapsis serves over 180 Global 2000 customers, including 10 top retailers, 20 top energy firms and 20 top manufacturers. Onapsis? solutions are also the de-facto standard for leading consulting and audit firms such as Accenture, IBM, Deloitte, E&Y, KPMG and PwC. Onapsis solutions include the Onapsis Security Platform, which is the most widely-used SAP-certified cyber-security solution in the market. Unlike generic security products, Onapsis? context-aware solutions deliver both preventative vulnerability and compliance controls, as well as real-time detection and incident response capabilities to reduce risks affecting critical business processes and data. Through open interfaces, the platform can be integrated with leading SIEM, GRC and network security products, seamlessly incorporating enterprise applications into existing vulnerability, risk and incident response management programs. These solutions are powered by the Onapsis Research Labs which continuously provide leading intelligence on security threats affecting SAP and Oracle enterprise applications. Experts of the Onapsis Research Labs were the first to lecture on SAP cyber-attacks and have uncovered and helped fix hundreds of security vulnerabilities to-date affecting SAP Business Suite, SAP HANA, SAP Cloud and SAP Mobile applications, as well as Oracle JD Edwards and Oracle E-Business Suite platforms. 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