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securityvulnsSecurityvulnsSECURITYVULNS:DOC:32496
HistorySep 14, 2015 - 12:00 a.m.

[ERPSCAN-15-015] SAP NetWeaver AS ABAP– Hardcoded Credentials

2015-09-1400:00:00
vulners.com
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ERPSCAN Research Advisory [ERPSCAN-15-015] SAP NetWeaver AS ABAP–
Hardcoded Credentials

Application: SAP NetWeaver
Versions Affected: SAP NetWeaver AS ABAP, probably others
Vendor URL: http://SAP.com
Bugs: Hardcoded credentials
Sent: 06.03.2014
Reported: 07.03.2014
Vendor response: 07.03.2014
Date of Public Advisory: 15.06.2015
Reference: SAP Security Note 2057982
Author: Rustem Gazizov, Diana Grigorieva (ERPScan)

Description

  1. ADVISORY INFORMATION
    Title: SAP NetWeaver AS ABAP – Hardcoded Credentials
    Advisory ID: [ERPSCAN-15-015]
    Risk: High
    Advisory URL: http://erpscan.com/advisories/erpscan-15-015-sap-netweaver-hardcoded-credentials/
    Date published: 15.06.2015
    Vendors contacted: SAP

  2. VULNERABILITY INFORMATION
    Class: hardcoded credentials [CWE-798]
    Impact: read application data; gain privileges / assume identity
    Remotely Exploitable: Yes
    Locally Exploitable: No

CVSS Information
CVSS Base Score: 2.1 / 10
CVSS Base Vector:
AV : Access Vector (Related exploit range) Network (N)
AC : Access Complexity (Required attack complexity) High (H)
Au : Authentication (Level of authentication needed to exploit) Single (S)
C : Impact to Confidentiality Partial (P)
I : Impact to Integrity None (N)
A : Impact to Availability None (N)

  1. VULNERABILITY DESCRIPTION
    The program code contains a hardcoded username that changes the
    system's behavior if the user is authenticated successfully. The user
    may obtain additional information that should not be displayed.

  2. VULNERABLE PACKAGES
    SAP NetWeaver AS ABAP
    Other versions are probably affected too, but they were not checked.

  3. SOLUTIONS AND WORKAROUNDS
    To correct this vulnerability, install SAP Security Note 2057982

  4. AUTHOR
    Rustem Gazizov, Diana Grigorieva (ERPScan)

  5. TECHNICAL DESCRIPTION
    An attacker can use hardcoded credentials to get unauthorized access
    and perform various actions in the system. In addition, it is likely
    that the code will be implemented into the system as a backdoor.

The vulnerability is in the FKCDBFTRACE ABAP program.

14 APPEND &1.
15 ENDIF.
16 END-OF-DEFINITION.
17
18 DEFINE SWITCH_TRACE_ON.
19 MOVE 'IF SY-UNAME = ''SCHWABK''.' TO MKCD_LINE.
20 APPEND MKCD_LINE TO &1.
21 END-OF-DEFINITION.
22

  1. REPORT TIMELINE
    Sent: 06.03.2014
    Reported: 07.03.2014
    Vendor response: 07.03.2014
    Date of Public Advisory: 15.06.2015

  2. REFERENCES
    http://erpscan.com/advisories/erpscan-15-015-sap-netweaver-hardcoded-credentials/

  3. ABOUT ERPScan Research
    The company’s expertise is based on the research subdivision of
    ERPScan, which is engaged in vulnerability research and analysis of
    critical enterprise applications. It has achieved multiple
    acknowledgments from 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 to have exposed new types of
    vulnerabilities (TOP 10 Web Hacking Techniques 2012) and to be
    nominated for the best server-side vulnerability at BlackHat 2013.
    ERPScan experts have been invited to speak, present, and train at 60+
    prime international security conferences in 25+ countries across the
    continents. These include BlackHat, RSA, HITB, and private SAP
    trainings in several Fortune 2000 companies.
    ERPScan researchers lead the project EAS-SEC, which is focused on
    enterprise application security research and awareness. They have
    published 3 exhaustive annual award-winning surveys about SAP
    security.
    ERPScan experts have been interviewed by leading media resources and
    featured in specialized info-sec publications worldwide. These include
    Reuters, Yahoo, SC Magazine, The Register, CIO, PC World, DarkReading,
    Heise, and Chinabyte, to name a few.
    We have highly qualified experts in staff with experience in many
    different fields of security, from web applications and
    mobile/embedded to reverse engineering and ICS/SCADA systems,
    accumulating their experience to conduct the best SAP security
    research.

  4. ABOUT ERPScan
    ERPScan is one of the most respected and credible Business Application
    Security providers. Founded in 2010, the company operates globally.
    Named an Emerging vendor in Security by CRN and distinguished by more
    than 25 other awards, ERPScan is the leading SAP SE partner in
    discovering and resolving security vulnerabilities. ERPScan
    consultants work with SAP SE in Walldorf to improve the security of
    their latest solutions.
    ERPScan’s primary mission is to close the gap between technical and
    business security. We provide solutions to secure ERP systems and
    business-critical applications from both cyber attacks and internal
    fraud. Our clients are usually large enterprises, Fortune 2000
    companies, and managed service providers whose requirements are to
    actively monitor and manage the security of vast SAP landscapes on a
    global scale.
    Our flagship product is ERPScan Security Monitoring Suite for SAP.
    This multi award-winning innovative software is the only solution on
    the market certified by SAP SE covering all tiers of SAP security:
    vulnerability assessment, source code review, and Segregation of
    Duties.
    The largest companies from diverse industries like oil and gas,
    banking, retail, even nuclear power installations as well as
    consulting companies have successfully deployed the software. ERPScan
    Security Monitoring Suite for SAP is specifically designed for
    enterprises to continuously monitor changes in multiple SAP systems.
    It generates and analyzes trends in user friendly dashboards, manages
    risks, tasks, and can export results to external systems. These
    features enable central management of SAP system security with minimal
    time and effort.
    We follow the sun and function in two hubs located in the Netherlands
    and the US to operate local offices and partner network spanning 20+
    countries around the globe. This enables monitoring cyber threats in
    real time and providing agile customer support.

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