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SAP Afaria 7 Missing Authorization Check

SAP Afaria 7 Missing Authorization Check
Posted Jun 18, 2015
Authored by Vahagn Vardanyan

SAP Afaria version 7 suffers from a missing authorization check vulnerability. An attacker can use a missing authorization check to access the service without any authorization procedures and use service functionality that has restricted access. This can lead to information disclosure, privilege escalation, and other attacks.

tags | advisory, info disclosure
advisories | CVE-2015-2816
SHA-256 | c31ed536e135ffd5dbbb2b9995e77c71bf0e3b40facee2e84ca09d91541fb8f9

SAP Afaria 7 Missing Authorization Check

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ERPSCAN Research Advisory [ERPSCAN-15-009] SAP Afaria 7 XcListener - 
Missing authorization check

Application: SAP Afaria 7
Versions Affected: SAP Afaria 7, probably others
Vendor URL: http://SAP.com
Bugs: Missing authorization check
Sent: 09.12.2014
Reported: 09.12.2014
Vendor response: 10.12.2014
Date of Public Advisory: 18.06.2015
Reference: SAP Security Note 2134905
Author: Vahagn Vardanyan (ERPScan)


Title: SAP Afaria 7 XcListener - Missing authorization check
Advisory ID: [ERPSCAN-15-009]
Risk: High
Advisory URL:
Date published: 15.03.2015
Vendors contacted: SAP

Class: DoS [CWE-862]
Impact: DoS
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2015-2816

An attacker can use a missing authorization check to access the service
without any authorization procedures and use service functionality that
has restricted access. This can lead to information disclosure,
privilege escalation, and other attacks.

SAP Afaria 7
Other versions are probably affected too, but they were not checked.

A vulnerability has been discovered in certain landscape configurations
of SAP Afaria that utilize XcListener for initiating client-to-server
communications. SAP has released security patches for the vulnerable
clients, Windows Mobile, Windows CE, and Windows. Windows Phone is not
affected. SAP strongly recommends that customers patch their servers.
To be vulnerable, XcListener must be an active process. The Windows
client enrollment policy allows administrators to enable/disable
XcListener with the advanced option “Outbound listener and firewall”.
XCListener listens to the port 3005. If the port 3005 is not exposed
externally, then the vulnerability is only accessible locally on the

Patching instructions:
1) Download hotfix
- SAP Afaria 7 SP5 Hotfix 8
- SAP Afaria 7 SP4 Hotfix 16
2) Apply server hotfix
The server version of XcListener will be patched when the hotfix is
applied. The clients will be updated through the Afaria ESD process as
they connect to the server.

Vahagn Vardanyan (ERPScan)

An anonymous attacker can use a special request to crash the Sybase SQL
Anywhere process on the server.

Sent: 09.12.2014
Reported: 09.12.2014
Vendor response: 10.12.2014
Date of Public Advisory: 18.06.2015


10. 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.

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
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.

Address USA: 228 Hamilton Avenue, Fl. 3, Palo Alto, CA, 94301
Phone: 650.798.5255
Twitter: @erpscan
Scoop-it: Business Application Security



e-mail: d.maenkova@erpscan.com <mailto:d.maenkova@erpscan.com>

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

phone: 650.798.5255

erpscan.com <http://erpscan.com>

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