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
71.7%
This updated advisory is a follow-up to the original advisory titled ICSA-20-084-01 VISAM Automation Base (VBASE) (Update A) that was published July 8, 2021, to the ICS webpage on us-cert.cisa.gov.
Successful exploitation of these vulnerabilities could allow an attacker to read the contents of unexpected files, escalate privileges to system level, execute arbitrary code on the targeted system, bypass security mechanisms, and discover the cryptographic key for the web login.
The following versions of VBASE, an automation platform, are affected:
Input passed in the URL is not properly verified before use, which may allow an attacker to read arbitrary files from local resources.
CVE-2020-7008 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).
Weak or insecure permissions on the VBASE directory may result in elevation of privileges or malicious effects on the system the next time a privileged user runs the application.
CVE-2020-7004 has been assigned to this vulnerability. A CVSS v3 base score of 8.2 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).
Weak hashing algorithm and insecure permissions may allow a local attacker to bypass the password-protected mechanism through brute-force attacks, cracking techniques, or overwriting the password hash.
CVE-2020-10601 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
An unauthenticated attacker may discover the cryptographic key from the web server and gain information about the login and the encryption/decryption mechanism, which may be exploited to bypass authentication of the HTML5 HMI web interface.
CVE-2020-7000 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).
A vulnerable ActiveX component may be exploited resulting in a buffer overflow, which may allow remote attackers to cause a denial-of-service condition and execute arbitrary code.
CVE-2020-10599 has been assigned to this vulnerability. A CVSS v3 base score of 9.0 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).
Gjoko Krstic of Applied Risk reported these vulnerabilities to CISA.
--------- Begin Update B Part 1 of 1 ---------
VISAM recommends users update to VBASE v11.7.0.2 or later. A download link will be provided by submitting a request form.
For more information, please contact VISAM using the information provided on their contact page.
--------- End Update B Part 1 of 1 ---------
For more information about these vulnerabilities and how VISAM plans to address them, please contact VISAM using the information provided on their contact page (German language).
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-12-146-01B–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.
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-2020-10599
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-10601
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7000
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7004
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7008
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-20-084-01
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/23.html
cwe.mitre.org/data/definitions/276.html
cwe.mitre.org/data/definitions/326.html
cwe.mitre.org/data/definitions/922.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=VISAM%20Automation%20Base%20%28VBASE%29%20%28Update%20B%29+https://www.cisa.gov/news-events/ics-advisories/icsa-20-084-01
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-20-084-01&title=VISAM%20Automation%20Base%20%28VBASE%29%20%28Update%20B%29
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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:H/I:N/A:N
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-20-084-01
www.oig.dhs.gov/
www.us-cert.gov/ics
www.us-cert.gov/ics
www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01
www.us-cert.gov/ics/recommended-practices
www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B
www.us-cert.gov/ncas/tips/ST04-014
www.us-cert.gov/sites/default/files/publications/emailscams_0905.pdf
www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.usa.gov/
www.vbase.net/en/contact.php
www.vbase.net/en/download.php
www.visam.com/kontakt.php
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=VISAM%20Automation%20Base%20%28VBASE%29%20%28Update%20B%29&body=www.cisa.gov/news-events/ics-advisories/icsa-20-084-01
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
71.7%