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             AUSCERT External Security Bulletin Redistribution

         Advisory (ICSA-17-138-01) Miele Professional PG 85 Series
                                19 May 2017


        AusCERT Security Bulletin Summary

Product:           Miele Professional PG 85 Series
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Modify Arbitrary Files          -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7240  

Original Bulletin: 

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Advisory (ICSA-17-138-01)

Miele Professional PG 85 Series

Original release date: May 18, 2017

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CVSS v3 7.3

ATTENTION: Remotely exploitable/low skill level to exploit. Public exploits 
are available.

Vendor: Miele Professional

Equipment: PG 85 Series

Vulnerability: Path Traversal


This advisory is a follow-up to the original alert titled ICS-ALERT-17-089-01
Miele Professional PG 8528 Vulnerability that was published March 30, 2017, on
the NCCIC/ICS-CERT web site.


Miele Professional reports that the following versions of the PG 85 product 
series, a large capacity cleaner and disinfector, and their embedded 
webservers are affected:

    PG8527, version 2.02, 2.51, 2.52, and 2.54
    PG8528, version 2.02, 2.51, 2.52, and 2.54
    PG8535, version 1.00 and 1.04
    PG8536, version 1.10 and 1.14


Successful exploitation of this vulnerability could allow a remote attacker to
read or modify sensitive data or files, execute unauthorized code or commands,
and possibly cause a system crash.


Miele Professional issued patches for this vulnerability on May 4, 2017. Miele
Professional is in the process of contacting all affected users via registered

Users of affected machines can contact Miele Professional at 1-800-991-9380 to
schedule service for a software update, which must be performed by a Miele 
Professional technician.

The following updates are available for affected Miele Professional PG 85 
series products:

    PG8527, version 2.02
        Update to version 2.12

    PG8527, version 2.51
        Update to version 2.61

    PG8527, version 2.52
        Update to version 2.62

    PG8527, version 2.54
        Update to version 2.64

    PG8528, version 2.02
        Update to version 2.12

    PG8528, version 2.51
        Update to version 2.61

    PG8528, version 2.52
        Update to version 2.62

    PG8528, version 2.54
        Update to version 2.64

    PG8535, version 1.00
        Update to version 1.10

    PG8535, version 1.04
        Update to version 1.14

    PG8536, version 1.10
        Update to version 1.20

    PG8536, version 1.14
        Update to version 1.24

Miele Professional issued a press release addressing this vulnerability on 
March 29, 2017, which can be found here:

https://www.miele.de/en/m/miele-admits-communication-glitch-4072.htm (link is

NCCIC/ICS-CERT recommends that users take defensive measures to minimize the 
risk of exploitation of this vulnerability. Specifically, users should:

- -Minimize network exposure for all control system devices and/or systems, 
and ensure that they are not accessible from the Internet.

- -Locate control system networks and remote devices behind firewalls, and 
isolate them from the business network.

- -When remote access is required, use secure methods, such as Virtual 
Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and 
should be updated to the most current version available. Also recognize that 
VPN is only as secure as the connected devices.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT also provides a section for control systems security recommended 
practices on the ICS-CERT web page. Several recommended practices are 
available for reading and download, including Improving Industrial Control 
Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly 
available in the ICSCERT Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies, that is available for download from the ICS-CERT web site.

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to ICS-CERT for 
tracking and correlation against other incidents.



The path traversal vulnerability has been identified, which may allow a remote
attacker to access sensitive information by using special elements in the 
pathname to resolve to a location outside of a restricted directory.

CVE-2017-7240 has been assigned to this vulnerability. A CVSS v3 base score of
7.3 has been assigned; the CVSS vector string is 


Jens Regel of Schneider & Wulf publicly disclosed this vulnerability without 
ICS-CERT coordination.


Critical Infrastructure Sector: Healthcare and Public Health

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Germany

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