CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
75.1%
This updated advisory is a follow-up to the advisory update titled ICSA-20-070-01 Siemens SiNVR 3 (Update A) that was published April 20, 2021, to the ICS webpage on us-cert.cisa.gov.
Successful exploitation of these vulnerabilities could result in unauthorized access to server data and possible denial-of-service conditions.
The following versions of SiNVR/SiVMS Video Server, a video management solution, are affected:
--------- Begin Update B Part 1 of 2 ---------
--------- End Update B Part 1 of 2 ---------
CVE-2019-19290, CVE-2019-19292, CVE-2019-19293, CVE-2019-19294, and CVE-2019-19295 have been moved to SSA-761844 and ICSA-21-103-10
The FTP services of the SiNVR/SiVMS Video Server maintain log files that store login credentials in cleartext. In configurations where the FTP service is enabled, authenticated remote attackers could extract login credentials of other users of the service.
CVE-2019-19291 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).
Successful exploitation could allow an authenticated remote attacker to access and download arbitrary files from the server if the FTP services are enabled.
CVE-2019-19296 has been assigned to this vulnerability. A CVSS v3 base score of 6.8 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).
Successful exploitation could allow an authenticated remote attacker to access and download arbitrary files from the server.
CVE-2019-19297 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).
Successful exploitation could allow an unauthenticated remote attacker to cause a denial-of-service condition by sending malformed HTTP requests.
CVE-2019-19298 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:N/A:H).
The affected product contains weak cryptography when exposing device passwords. This could allow an unauthenticated remote attacker to read and decrypt the passwords and conduct further attacks.
CVE-2019-19299 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).
ā¢ **CRITICAL INFRASTRUCTURE SECTORS:**Information Technology
ā¢ COUNTRIES/AREAS DEPLOYED: Worldwide
ā¢ **COMPANY HEADQUARTERS LOCATION:**Germany
Siemens reported these vulnerabilities to CISA.
--------- Begin Update B Part 2 of 2 ---------
Siemens and PKE recommend users to update to v5.0.0 or later.
Siemens has identified the following specific workarounds and mitigations users can apply to reduce the risk:
--------- End Update B Part 2 of 2 ---------
As a general security measure Siemens strongly recommends protecting network access to affected products with appropriate mechanisms. Siemens advises users to follow recommended security practices to run the devices in a protected IT environment.
Additional information on industrial security by Siemens can be found at: <https://www.siemens.com/industrialsecurity>
For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens security advisory SSA-844761 and PKE security advisory.
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.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-12-146-01BāTargeted 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.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target these vulnerabilities.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19290
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19291
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19292
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19293
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19294
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19295
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19296
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19297
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19298
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19298
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19299
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19299
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19299
cert-portal.siemens.com/productcert/pdf/ssa-761844.pdf
cert-portal.siemens.com/productcert/pdf/ssa-761844.pdf
cert-portal.siemens.com/productcert/pdf/ssa-844761.pdf
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-20-070-01
cwe.mitre.org/data/definitions/20.html
cwe.mitre.org/data/definitions/22.html
cwe.mitre.org/data/definitions/22.html
cwe.mitre.org/data/definitions/313.html
cwe.mitre.org/data/definitions/327.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
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us-cert.cisa.gov/ics/advisories/icsa-21-103-10
us-cert.cisa.gov/ics/advisories/icsa-21-103-10
www.dhs.gov
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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www.us-cert.gov/sites/default/files/publications/emailscams_0905.pdf
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mailto:?subject=Siemens%20and%20PKE%20SiNVR/SiVMS%20Video%20Server%20%28Update%20B%29&body=www.cisa.gov/news-events/ics-advisories/icsa-20-070-01
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
75.1%