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SAP GRC Bypass / Privilege Escalation / Program Execution

SAP GRC Bypass / Privilege Escalation / Program Execution
Posted Nov 12, 2014
Authored by Ertunga Arsal, Mert Suoglu | Site esnc.de

SAP Governance, Risk and Compliance (SAP GRC) suffers from SoD bypass, privilege escalation, and remote arbitrary program execution vulnerabilities.

tags | advisory, remote, arbitrary, vulnerability
advisories | CVE-2013-3678
MD5 | a9968a540a813366a761e50fc0785e23

SAP GRC Bypass / Privilege Escalation / Program Execution

Change Mirror Download
[ESNC-2039348] Multiple Critical Security Vulnerabilities in SAP
Governance, Risk and Compliance (SAP GRC)


Please refer to http://www.esnc.de for the original security advisory,
updates and additional information.


------------------------------------------------------------------------
1. Business Impact
------------------------------------------------------------------------

According to SAP, "SAP Governance, Risk, and Compliance solutions (SAP
GRC solutions) offer your organization a preventive, real-time
approach to governance, risk, and compliance. Automated risk and
compliance monitoring activities can help you proactively prevent risk
events and compliance violations, helping you protect the value of
your organization"

SAP GRC Access Control has multiple remote vulnerabilities, which may
allow an attacker to elevate privileges, bypass SoD restrictions and
execute arbitrary programs. An attacker can also exploit these
vulnerabilities remotely using RFC protocol or if SOAP-RFC is active,
through http/https.

Due to the nature of the business functionality SAP GRC modules offer,
we believe the issue is rather critical.

Risk Level: High


------------------------------------------------------------------------
2. Advisory Information
------------------------------------------------------------------------

-- ESNC Security Advisory ID: ESNC-2039348
-- CVE ID: CVE-2013-3678
-- Original security advisory:
http://www.esnc.de/security-advisories/security-vulnerability-in-sap-grc-access-control
-- Reporting Date: 01.04.2013
-- Vendor Patch Date: 11.11.2014
-- Public Advisory Date: 11.11.2014
-- Researcher: Ertunga Arsal & Mert Suoglu


------------------------------------------------------------------------
3. Vulnerability Information
------------------------------------------------------------------------

-- Vendor: SAP
-- Affected Components: SAP GRC - Access Control
-- Vulnerability Class: SoD Bypass, Privilege Escalation, Remote
Arbitrary Program Execution
-- Vulnerable Function: /GRCPI/GRIA_USR_GET_AUTH (please refer to the
SAP note for more details)
-- CVSS v2 score by the vendor: 8.5 (AV:N/AC:M/AU:S/C:C/I:C/A:C)
-- Remotely Exploitable: Yes
-- Authentication Required: Yes
-- Additional Notes: An exploit for this vulnerability is available in
ESNC Security Suite - Penetration Testing Module.


------------------------------------------------------------------------
4. Solution
------------------------------------------------------------------------

ESNC Security Suite customers, which utilize its latest ruleset for
Real-Time Monitoring & Fraud Detection and Prevention module have
protection and mitigation capabilities for this vulnerability since
April, 2013.

We recommend SAP customers to apply the security patch [SAP Note
2039348] and implement manual instructions supplied by the vendor.

More information can be found at vendor's site:

https://service.sap.com/sap/support/notes/2039348


------------------------------------------------------------------------
About ESNC
------------------------------------------------------------------------

ESNC GmbH, Germany is an independent company specialized in SAP
security audit, SAP penetration testing, ABAP security review and SAP
vulnerability assessment services.

It's flagship product ESNC Security Suite is used by many large
enterprises for vulnerability scanning their SAP ABAP, Java and Hana
systems, for running ABAP code security reviews, enforcing SAP
security baselines and for real-time enterprise threat detection.

For more information about our products and services, please visit our
web page at http://www.esnc.de

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