10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.4%
This updated advisory is a follow-up to the original advisory titled ICSA-21-287-07 Siemens SCALANCE that was published October 14, 2021, on the ICS webpage on cisa.gov/ICS
Successful exploitation of these vulnerabilities could allow an attacker to inject commands or trigger buffer overflows.
The following versions of SCALANCE W1750D, a software management platform, are affected:
--------- Begin Update A part 1 of 3 ---------
--------- End Update A part 1 of 3 ---------
The web interface for RAPConsole lacks Anti-CSRF protections in place for state-changing operations. This can be exploited by an attacker to reboot the affected device if the attacker can convince a user to visit a specially crafted webpage.
CVE-2019-5318 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H).
4.2.2 OS COMMAND INJECTION CWE-78
An authenticated command injection vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2020-37719 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).
There are multiple buffer overflow vulnerabilities that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba Networks AP management protocol) UDP Port (8211) of devices running ArubaOS. This may allow for denial-of-service attacks and/or remote code execution in the underlying operating system.
CVE-2021-37716 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
An authenticated command injection vulnerability exists in the ArubaOS web-based management user interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2021-37717 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).
An authenticated command injection vulnerability exists in the ArubaOS web-based management user interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2021-37718 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).
An authenticated command injection vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2021-37720 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).
An authenticated command injection vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2021-37721 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).
An authenticated command injection vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the device running ArubaOS.
CVE-2021-37722 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).
An authenticated command injection vulnerability exists in the ArubaOS command line interface. This vulnerability is only present in instances of the Mobility Conductor. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the Mobility Conductor running ArubaOS.
CVE-2021-37723 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).
An authenticated command injection vulnerability exists in the ArubaOS command line interface. This vulnerability is only present in instances of the Mobility Conductor. Successful exploitation of this vulnerability results in the ability to execute arbitrary commands as a privileged user on the underlying operating system. This allows an attacker to fully compromise the underlying operating system on the Mobility Conductor running ArubaOS.
CVE-2021-37724 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).
A vulnerability in the web-based management interface of ArubaOS could allow an unauthenticated remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack against a vulnerable system. Successful exploitation of this vulnerability would consist of an attacker persuading an authorized user to follow a malicious link, resulting in the deletion of arbitrary files with the privilege level of the targeted user.
CVE-2021-37725 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N).
An authenticated path traversal vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to impact the integrity of critical files on the underlying operating system. This allows an attacker to impact the availability of the ArubaOS instance and may allow for modification of sensitive data.
CVE-2021-37728 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:H/UI:N/S:U/C:N/I:H/A:H).
An authenticated path traversal vulnerability exists in the ArubaOS web-based management interface. Successful exploitation of this vulnerability results in the ability to impact the integrity of critical files on the underlying operating system. This allows an attacker to impact the availability of the ArubaOS instance and may allow for modification of sensitive data.
CVE-2021-37729 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:H/UI:N/S:U/C:N/I:H/A:H).
An authenticated local path traversal vulnerability exists in the ArubaOS web-based management interface and CLI. This vulnerability only affects physical hardware controllers such as the 9000 series and 7x00 series. Successful exploitation of this vulnerability requires physical access to the controller and results in the ability to impact the integrity and confidentiality of critical files on the underlying operating system. This allows an attacker to impact the availability of the ArubaOS instance and may allow for modification or disclosure of sensitive data.
CVE-2021-37731 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been assigned; the CVSS vector string is (AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C).
An authenticated path traversal vulnerability exists in the ArubaOS command line interface. Successful exploitation of this vulnerability results in the ability to read arbitrary files on the underlying operating system, including sensitive system files.
CVE-2021-37733 has been assigned to this vulnerability. A CVSS v3 base score of 4.9 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
β’ CRITICAL INFRASTRUCTURE SECTORS: Chemical, Energy, Food and Agriculture, Healthcare and Public Health, Transportation Systems, and Water and Wastewater Systems
β’ COUNTRIES/AREAS DEPLOYED: Worldwide
β’ COMPANY HEADQUARTERS LOCATION: Germany
Siemens reported these vulnerabilities to CISA.
Siemens recommends upgrading SCALANCE W1750 to Versions 8.7.1.3 or later
--------- Begin Update A part 2 of 3 ---------
SCALANCE W1750D: All version 8719 and prior (only affected by CVE-2019-5318, currently no fix is planned.
SCALANCE W1750 versions from 8.7.1.3 to 9.7.1.8 update to version 9.7.1.9 or later (only affected by CVE-2019-5318, CVE-2020-37719, CVE-2021-37717, CVE-2021-37718, CVE-2021-37720, CVE-2021-37721, CVE-2021-37722, CVE-2021-37728).
--------- End Update A part 2 of 3 ---------
Siemens has identified the following specific workarounds and mitigations users can apply to reduce the risk:
As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemensβ operational guidelines for industrial security, and to follow the recommendations in the product manuals.
--------- Begin Update A part 3 of 3 ---------
For additional information, please refer to Siemens Security Advisory SSA-280624 in HTML or CSAF.
--------- End Update A part 3 of 3 ---------
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
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-12-146-01BβTargeted 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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-5318
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-37719
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37716
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37717
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37718
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37720
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37721
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37722
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37723
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37724
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37725
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37728
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37729
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37731
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37733
cert-portal.siemens.com/operational-guidelines-industrial-security.pdf
cert-portal.siemens.com/productcert/csaf/ssa-280624.json
cert-portal.siemens.com/productcert/html/ssa-280624.html
cwe.mitre.org/data/definitions/120.html
cwe.mitre.org/data/definitions/22.html
cwe.mitre.org/data/definitions/22.html
cwe.mitre.org/data/definitions/22.html
cwe.mitre.org/data/definitions/311.html
cwe.mitre.org/data/definitions/352.html
cwe.mitre.org/data/definitions/352.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/77.html
cwe.mitre.org/data/definitions/78.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
support.industry.siemens.com/cs/de/en/view/109802805/
support.industry.siemens.com/cs/de/en/view/109813747/
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us-cert.cisa.gov/ics
us-cert.cisa.gov/ics
us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
us-cert.cisa.gov/ics/recommended-practices
us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/rap/rest-local-deb.htm
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
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10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.4%