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
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
85.6%
--------- Begin Update A Part 1 of 6 ---------
--------- End Update A Part 1 of 6 ---------
This updated advisory is a follow-up to the original advisory titled ICSA-19-344-02 Siemens SiNVR 3 that was published December 10, 2019, to the ICS webpage on us-cert.cisa.gov.
--------- Begin Update A Part 2 of 6 ---------
Successful exploitation of these vulnerabilities could allow an attacker to read the SiVMS/SiNVR users database, including the passwords of all users in obfuscated cleartext and configuration files.
--------- End Update A Part 2 of 6 ---------
--------- Begin Update A Part 3 of 6 ---------
The following versions of SiNVR/SiVMS Video Server, a video management solution, are affected:
--------- End Update A Part 3 of 6 ---------
--------- Begin Update A Part 4 of 6 ---------
CVE-2019-13947, CVE-2019-18337, CVE-2019-18338, CVE-2019-18341, and CVE-2019-18342 have been moved to SSA-761844 and ICSA-21-103-10.
The HTTP service (default specific port) of the SiNVR 3 Video Server contains an authentication bypass vulnerability, even when properly configured with enforced authentication.
CVE-2019-18339 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Both the SiNVR 3 Video Server and the CCS store user and device passwords by applying weak cryptography.
CVE-2019-18340 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
--------- End Update A Part 4 of 6 ---------
Raphaรซl Rigo from Airbus Security Lab reported these vulnerabilities to Siemens.
--------- Begin Update A Part 5 of 6 ---------
Siemens recommends users to update to v5.0.0 or later.
Siemens has identified the following specific workarounds and mitigations that users can apply to reduce the risk:
--------- End Update A Part 5 of 6 ---------
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 configuring the environment according to Siemensโ operational guidelines for industrial security and to following the recommendations in the product manuals.
Additional information on industrial security by Siemens can be found at: <https://www.siemens.com/industrialsecurity>
--------- Begin Update A Part 6 of 6 ---------
For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens security advisory SSA-761617 and the PKE security advisory.
--------- End Update A Part 6 of 6 ---------
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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.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.gov in the Technical Information Paper, ICS-TIP-12-146-01BโTargeted 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-2019-13947
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18337
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18338
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18339
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18340
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18340
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18341
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-18342
www.siemens.com/cert/advisories
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-19-344-02
cwe.mitre.org/data/definitions/261.html
cwe.mitre.org/data/definitions/306.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
sivms.cloud/sivms-platform/
sivms.cloud/wp-content/uploads/2021/03/sivms-cve-fixes_1.0_EN.pdf
twitter.com/CISAgov
twitter.com/intent/tweet?text=Siemens%20and%20PKE%20SiNVR%2C%20SiVMS%20Video%20Server%20%28Update%20A%29+https://www.cisa.gov/news-events/ics-advisories/icsa-19-344-02
us-cert.cisa.gov/ics/advisories/icsa-21-103-10
us-cert.cisa.gov/ics/advisories/icsa-21-103-10
us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
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-19-344-02&title=Siemens%20and%20PKE%20SiNVR%2C%20SiVMS%20Video%20Server%20%28Update%20A%29
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/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:H/I:H/A:H
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-19-344-02
www.oig.dhs.gov/
www.siemens.com/industrialsecurity
www.us-cert.gov/ics
www.us-cert.gov/ics
www.us-cert.gov/ics/recommended-practices
www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B
www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Siemens%20and%20PKE%20SiNVR%2C%20SiVMS%20Video%20Server%20%28Update%20A%29&body=www.cisa.gov/news-events/ics-advisories/icsa-19-344-02
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
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
85.6%