CVSS v3 9.8
ATTENTION: Exploitable remotely/low skill level to exploit
**Vendor:**NUUO
**Equipment:**CMS
**Vulnerabilities:**Use of Insufficiently Random Values, Use of Obsolete Function, Incorrect Permission Assignment for Critical Resource, Use of Hard-coded Credentials
Successful exploitation of theses vulnerabilities could result in arbitrary remote code execution.
The following versions of NUUO CMS, a central software management platform, are affected:
3.2.1 USE OF INSUFFICIENTLY RANDOM VALUES CWE-330
The application uses a session identification mechanism that could allow attackers to obtain the active session ID, which could allow arbitrary remote code execution.
CVE-2018-17888 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).
3.2.2 USE OF OBSOLETE FUNCTION CWE-477
The application uses insecure and outdate software components for functionality, which could allow arbitrary code execution.
CVE-2018-17890 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).
3.2.3 INCORRECT PERMISSION ASSIGNMENT FOR CRITICAL RESOURCE CWE-732
The application implements a method of user account control that causes standard account security features to not be utilized as intended, which could allow user account compromise and may allow for remote code execution.
CVE-2018-17892 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
3.2.4 USE OF HARD-CODED CREDENTIALS CWE-798
The application creates default accounts that have hard-coded passwords, which could allow an attacker to gain privileged access.
CVE-2018-17894 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).
Pedro Ribeiro reported these vulnerabilities to NCCIC.
NUUO has developed a fix for the reported vulnerabilities and recommends users update to firmware v3.3 or the latest available. The update can be located at the following location:
<http://d1.nuuo.com/NUUO/CMS/v3.3.0/CMS_NUUO_All_v3.3.0.18.zip>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. 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-CERT website 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 NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target these vulnerabilities.
d1.nuuo.com/NUUO/CMS/v3.3.0/CMS_NUUO_All_v3.3.0.18.zip
ics-cert.us-cert.gov
ics-cert.us-cert.gov
twitter.com/icscert
twitter.com/icscert
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17888
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17890
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17892
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17894
www.addthis.com/bookmark.php?url=https%3A%2F%2Fics-cert.us-cert.gov%2Fadvisories%2FICSA-18-284-02-NUUO-CMS
www.dhs.gov
www.dhs.gov/report-cyber-risks
www.us-cert.gov/accessibility/
www.us-cert.gov/pdf/
www.us-cert.gov/privacy/
www.us-cert.gov/tlp/
www.us-cert.gov/tlp/
cwe.mitre.org/data/definitions/330.html
cwe.mitre.org/data/definitions/477.html
cwe.mitre.org/data/definitions/732.html
cwe.mitre.org/data/definitions/798.html
ics-cert.us-cert.gov/
ics-cert.us-cert.gov/alerts/ICS-ALERT-10-301-01
ics-cert.us-cert.gov/content/recommended-practices
ics-cert.us-cert.gov/Report-Incident?
ics-cert.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
ics-cert.us-cert.gov/tips/ICS-TIP-12-146-01B
twitter.com/share?url=https%3A%2F%2Fics-cert.us-cert.gov%2Fadvisories%2FICSA-18-284-02-NUUO-CMS
www.facebook.com/sharer.php?u=https%3A%2F%2Fics-cert.us-cert.gov%2Fadvisories%2FICSA-18-284-02-NUUO-CMS
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.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.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.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.us-cert.gov/forms/feedback?helpful=no&document=ICSA-18-284-02 NUUO CMS NUUO CMS&trackingNumber=&url=https://ics-cert.us-cert.gov/advisories/ICSA-18-284-02-NUUO-CMS&site_name=ICS-CERT
www.us-cert.gov/forms/feedback?helpful=somewhat&document=ICSA-18-284-02 NUUO CMS NUUO CMS&trackingNumber=&url=https://ics-cert.us-cert.gov/advisories/ICSA-18-284-02-NUUO-CMS&site_name=ICS-CERT
www.us-cert.gov/forms/feedback?helpful=yes&document=ICSA-18-284-02 NUUO CMS NUUO CMS&trackingNumber=&url=https://ics-cert.us-cert.gov/advisories/ICSA-18-284-02-NUUO-CMS&site_name=ICS-CERT