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AUSCERT External Security Bulletin Redistribution
ESB-2020.3661
Advisory (icsma-20-296-02) B. Braun SpaceCom, Battery Pack
SP with Wi-Fi, and Data module compactplus
23 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: B. Braun SpaceCom
B. Braun Battery Pack SP with Wi-Fi
B. Braun Data module compactplus
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Increased Privileges -- Remote/Unauthenticated
Root Compromise -- Existing Account
Execute Arbitrary Code/Commands -- Existing Account
Create Arbitrary Files -- Existing Account
Cross-site Scripting -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote/Unauthenticated
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25168 CVE-2020-25166 CVE-2020-25164
CVE-2020-25162 CVE-2020-25160 CVE-2020-25158
CVE-2020-25156 CVE-2020-25154 CVE-2020-25152
CVE-2020-25150 CVE-2020-16238
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsma-20-296-02
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ICS Medical Advisory (ICSMA-20-296-02)
B. Braun SpaceCom, Battery Pack SP with Wi-Fi, and Data module compactplus
Original release date: October 22, 2020
Legal Notice
All information products included in https://us-cert.gov/ics are provided"as
is" for informational purposes only. The Department of Homeland Security (DHS)
does not provide any warranties of any kind regarding any information contained
within. DHS does not endorse any commercial product or service, referenced in
this product or otherwise. Further dissemination of this product is governed by
the Traffic Light Protocol (TLP) marking in the header. For more information
about TLP, see https://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.6
o ATTENTION: Exploitable remotely/low and high skill level to exploit
o Vendor: B. Braun Melsungen AG
o Equipment: SpaceCom, Battery Pack SP with Wi-Fi, and Data module
compactplus
o Vulnerabilities : Cross-site Scripting, Open Redirect, XPath Injection,
Session Fixation, Use of a One-way Hash without a Salt, Relative Path
Traversal, Improper Verification of Cryptographic Signature, Improper
Privilege Management, Use of Hard-coded Credentials, Active Debug Code,
Improper Access Control
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to
compromise the security of the Space or compactplus communication devices,
allowing an attacker to escalate privileges, view sensitive information, upload
arbitrary files, and perform remote code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of B. Braun products are affected:
o SpaceCom, software Versions U61 and earlier (United States), L81 and
earlier (outside the United States)
o Battery pack with Wi-Fi, software Versions U61 and earlier (United States),
L81 and earlier (outside the United States)
o Data module compactplus, software Versions A10 and A11 (not distributed in
the United States)
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE
SCRIPTING') CWE-79
A reflected cross-site scripting (XSS) vulnerability in the B. Braun Melsungen
AG SpaceCom Version L81/U61 and earlier, and the Data module compactplus
Versions A10 and A11 allows remote attackers to inject arbitrary web script or
HTML into various locations.
CVE-2020-25158 has been assigned to this vulnerability. A CVSS v3 base score of
7.6 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:R/S:U/C:H/
I:L/A:L ).
3.2.2 URL REDIRECTION TO UNTRUSTED SITE ('OPEN REDIRECT') CWE-601
An open redirect vulnerability in the administrative interface of the B. Braun
Melsungen AG SpaceCom device Version L81/U61 and earlier, and the Data module
compactplus Versions A10 and A11 allows attackers to redirect users to
malicious websites.
CVE-2020-25154 has been assigned to this vulnerability. A CVSS v3 base score of
5.4 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:R/S:U/C:L/
I:L/A:N ).
3.2.3 IMPROPER NEUTRALIZATION OF DATA WITHIN XPATH EXPRESSIONS ('XPATH
INJECTION') CWE-643
A XPath injection vulnerability in the B. Braun Melsungen AG SpaceCom Version
L81/U61 and earlier, and the Data module compactplus Versions A10 and A11
allows unauthenticated remote attackers to access sensitive information and
escalate privileges.
CVE-2020-25162 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:H/
I:N/A:N ).
3.2.4 SESSION FIXATION CWE-384
A session fixation vulnerability in the B. Braun Melsungen AG SpaceCom
administrative interface Version L81/U61 and earlier, and the Data module
compactplus Versions A10 and A11 allows remote attackers to hijack web sessions
and escalate privileges.
CVE-2020-25152 has been assigned to this vulnerability. A CVSS v3 base score of
6.5 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:R/S:U/C:H/
I:N/A:N ).
3.2.5 USE OF A ONE-WAY HASH WITHOUT A SALT CWE-759
A vulnerability in the B. Braun Melsungen AG SpaceCom Version L81/U61 and
earlier, and the Data module compactplus Versions A10 and A11 allows attackers
to recover user credentials of the administrative interface.
CVE-2020-25164 has been assigned to this vulnerability. A CVSS v3 base score of
5.1 has been assigned; the CVSS vector string is ( AV:L/AC:H/PR:N/UI:N/S:U/C:H/
I:N/A:N ).
3.2.6 RELATIVE PATH TRAVERSAL CWE-23
A relative path traversal attack in the B. Braun Melsungen AG SpaceCom Version
L81/U61 and earlier, and the Data module compactplus Versions A10 and A11
allows attackers with service user privileges to upload arbitrary files. By
uploading a specially crafted tar file an attacker can execute arbitrary
commands.
CVE-2020-25150 has been assigned to this vulnerability. A CVSS v3 base score of
7.6 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:L/UI:N/S:U/C:L/
I:H/A:L ).
3.2.7 IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE CWE-347
An improper verification of the cryptographic signature of firmware updates of
the B. Braun Melsungen AG SpaceCom Version L81/U61 and earlier, and the Data
module compactplus Versions A10 and A11 allows attackers to generate valid
firmware updates with arbitrary content that can be used to tamper with
devices.
CVE-2020-25166 has been assigned to this vulnerability. A CVSS v3 base score of
6.8 has been assigned; the CVSS vector string is ( AV:P/AC:H/PR:N/UI:N/S:C/C:N/
I:H/A:H ).
3.2.8 IMPROPER PRIVILEGE MANAGEMENT CWE-269
A vulnerability in the configuration import mechanism of the B. Braun Melsungen
AG SpaceCom Version L81/U61 and earlier, and the Data module compactplus
Versions A10 and A11 allows attackers with command line access to the
underlying Linux system to escalate privileges to the root user.
CVE-2020-16238 has been assigned to this vulnerability. A CVSS v3 base score of
6.7 has been assigned; the CVSS vector string is ( AV:L/AC:L/PR:H/UI:N/S:U/C:H/
I:H/A:H ).
3.2.9 USE OF HARD-CODED CREDENTIALS CWE-798
Hard-coded credentials in the B. Braun Melsungen AG SpaceCom Version L81/U61
and earlier, and the Data module compactplus Versions A10 and A11 enables
attackers with command line access to access the device's Wi-Fi module.
CVE-2020-25168 has been assigned to this vulnerability. A CVSS v3 base score of
3.3 has been assigned; the CVSS vector string is ( AV:L/AC:L/PR:L/UI:N/S:U/C:L/
I:N/A:N ).
3.2.10 ACTIVE DEBUG CODE CWE-489
Active debug code in the B. Braun Melsungen AG SpaceCom Version L8/U61, and the
Data module compactplus Versions A10 and A11 and earlier enables attackers in
possession of cryptographic material to access the device as root.
CVE-2020-25156 has been assigned to this vulnerability. A CVSS v3 base score of
7.2 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:N/S:U/C:H/
I:H/A:H ).
3.2.11 IMPROPER ACCESS CONTROL CWE-284
Improper access controls in the B. Braun Melsungen AG SpaceCom Version L81/U61
and earlier, and the Data module compactplus Versions A10 and A11 enables
attackers to extract and tamper with the devices network configuration.
CVE-2020-25160 has been assigned to this vulnerability. A CVSS v3 base score of
6.8 has been assigned; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:N/S:C/C:L/
I:L/A:L ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Germany
3.4 RESEARCHER
Julian Suleder, Nils Emmerich, and Birk Kauer of ERNW Research GmbH; Dr. Oliver
Matula of ERNW Enno Rey Netzwerke GmbH, reported these vulnerabilities to the
Federal Office for Information Security (BSI), Germany, in the context of the
BSI project ManiMed (Manipulation of medical devices).
4. MITIGATIONS
B. Braun recommends applying updates:
o SpaceCom: Version U62 or later (United States), L82 or later (outside the
United States)
o Battery Pack SP with Wi-Fi: Version U62 or later (United States), L82 or
later (outside the United States)
o Data module compactplus: Version A12 or later
As a general security measure, B. Braun recommends protecting the network with
appropriate mechanisms:
o Ensure the devices are not accessible directly from the Internet.
o Use a firewall and isolate the medical devices from the business network.
Please contact your local B. Braun organization to request further help. For
more information please see the B. Braun Security Advisory .
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o 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.
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices
on the ICS webpage on us-cert.cisa.gov . 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
on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
No known public exploits specifically target these vulnerabilities.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.
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