CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
79.7%
Successful exploitation of these vulnerabilities could allow an unauthenticated remote attacker to access or modify several internal application resources.
The following versions of Siveillance Identity, a web-based self-service portal, are affected:
The affected applications insufficiently limit the access to the internal message broker system, which could allow an unauthenticated remote attacker to subscribe to arbitrary message queues.
CVE-2021-44522 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
The affected applications insufficiently limit the access to the internal activity feed database, which could allow an unauthenticated remote attacker to read, modify, or delete activity feed entries.
CVE-2021-44523 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
The affected applications insufficiently limit the access to the internal user authentication service, which could allow an unauthenticated remote attacker to trigger several actions on behalf of valid user accounts.
CVE-2021-44524 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).
ā¢ CRITICAL INFRASTRUCTURE SECTORS: Multiple
ā¢ COUNTRIES/AREAS DEPLOYED: Worldwide
ā¢ ** COMPANY HEADQUARTERS LOCATION:** Germany
Siemens reported these vulnerabilities to CISA.
Siemens has released an update for Siveillance Identity and recommends users to update:
Siemens has not identified any additional specific workarounds or mitigations. Please follow the general security recommendations below.
As a general security measure Siemens strongly recommends protecting network access of affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment.
Please see Siemens security advisory SSA-463116 for more information.
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 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 cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01BāTargeted 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-2021-44522
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-44523
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-44524
cert-portal.siemens.com/productcert/pdf/ssa-463116.pdf
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-21-350-14
cwe.mitre.org/data/definitions/668.html
cwe.mitre.org/data/definitions/668.html
cwe.mitre.org/data/definitions/668.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
support.industry.siemens.com/cs/ww/en/view/109801824
support.industry.siemens.com/cs/ww/en/view/109801824
twitter.com/CISAgov
twitter.com/intent/tweet?text=Siemens%20Siveillance%20Identity+https://www.cisa.gov/news-events/ics-advisories/icsa-21-350-14
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics/recommended-practices
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-21-350-14&title=Siemens%20Siveillance%20Identity
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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www.youtube.com/@cisagov
mailto:?subject=Siemens%20Siveillance%20Identity&body=www.cisa.gov/news-events/ics-advisories/icsa-21-350-14
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
79.7%