9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
71.6%
CVSS v3 9.1
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: PHOENIX CONTACT
Equipment: FL SWITCH 3xxx/4xxx/48xx Series
Vulnerabilities: Command Injection, Information Exposure, Stack-based Buffer Overflow
Successful exploitation of these vulnerabilities could allow for remote code execution and information disclosure.
All FL SWITCH 3xxx, 4xxx, and 48xxx Series products running firmware Version 1.0 to 1.32 are affected.
An attacker with permission to transfer configuration files to or from the switch or permission to upgrade firmware is able to execute arbitrary OS shell commands.
CVE-2018-10730 has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).
Web interface CGI applications may copy the contents of the running configuration file to a commonly accessed file. Manipulation of a web login request can expose the contents of this file through to the web browser. A successful web interface login attempt is not required to read the configuration file contents.
CVE-2018-10729 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:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
An attacker may insert a carefully crafted cookie into a GET request to cause a buffer overflow that can initiate a denial of service attack and execute arbitrary code.
CVE-2018-10728 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
A remote attacker may exploit a βlong cookieβ related vulnerability to cause a buffer overflow that allows unauthorized access to the switches operating system files and the insertion of executable code into the OS.
CVE-2018-10731 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).
CERT@VDE working with Vyacheslav Moskvin, Semen Sokolov, Evgeniy Druzhinin, Georgy Zaytsev and Ilya Karpov of Positive Technologies and PHOENIX CONTACT reported the vulnerabilities to NCCIC.
PHOENIX CONTACT recommends that affected users upgrade to firmware Version 1.34 or higher. The updated firmware may be downloaded from the managed switch product page on the PHOENIX CONTACT website:
<http://www.phoenixcontact.net/qr/2891030/firmware_update>
<http://www.phoenixcontact.net/qr/2891032/firmware_update>
<http://www.phoenixcontact.net/qr/2891033/firmware_update>
<http://www.phoenixcontact.net/qr/2891034/firmware_update>
<http://www.phoenixcontact.net/qr/2891031/firmware_update>
<http://www.phoenixcontact.net/qr/2891035/firmware_update>
<http://www.phoenixcontact.net/qr/2891036/firmware_update>
<http://www.phoenixcontact.net/qr/2891037/firmware_update>
<http://www.phoenixcontact.net/qr/2891067/firmware_update>
<http://www.phoenixcontact.net/qr/2891066/firmware_update>
<http://www.phoenixcontact.net/qr/2891058/firmware_update>
<http://www.phoenixcontact.net/qr/2891059/firmware_update>
<http://www.phoenixcontact.net/qr/2891060/firmware_update>
<http://www.phoenixcontact.net/qr/2891062/firmware_update>
<http://www.phoenixcontact.net/qr/2891061/firmware_update>
<http://www.phoenixcontact.net/qr/2891160/firmware_update>
<http://www.phoenixcontact.net/qr/2891073/firmware_update>
<http://www.phoenixcontact.net/qr/2891080/firmware_update>
<http://www.phoenixcontact.net/qr/2891086/firmware_update>
<http://www.phoenixcontact.net/qr/2891085/firmware_update>
<http://www.phoenixcontact.net/qr/2891079/firmware_update>
<http://www.phoenixcontact.net/qr/2891074/firmware_update>
<http://www.phoenixcontact.net/qr/2891063/firmware_update>
<http://www.phoenixcontact.net/qr/2891161/firmware_update>
<http://www.phoenixcontact.net/qr/2891072/firmware_update>
<http://www.phoenixcontact.net/qr/2891102/firmware_update>
<http://www.phoenixcontact.net/qr/2891104/firmware_update>
<http://www.phoenixcontact.net/qr/2891120/firmware_update>
<http://www.phoenixcontact.net/qr/2891119/firmware_update>
<http://www.phoenixcontact.net/qr/2891162/firmware_update>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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-12-146-01BβTargeted 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.
NCCIC also recommends that 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-2017-10728
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-10729
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-10731
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10730
www.phoenixcontact.net/qr/2891030/firmware_update
www.phoenixcontact.net/qr/2891031/firmware_update
www.phoenixcontact.net/qr/2891032/firmware_update
www.phoenixcontact.net/qr/2891033/firmware_update
www.phoenixcontact.net/qr/2891034/firmware_update
www.phoenixcontact.net/qr/2891035/firmware_update
www.phoenixcontact.net/qr/2891036/firmware_update
www.phoenixcontact.net/qr/2891037/firmware_update
www.phoenixcontact.net/qr/2891058/firmware_update
www.phoenixcontact.net/qr/2891059/firmware_update
www.phoenixcontact.net/qr/2891060/firmware_update
www.phoenixcontact.net/qr/2891061/firmware_update
www.phoenixcontact.net/qr/2891062/firmware_update
www.phoenixcontact.net/qr/2891063/firmware_update
www.phoenixcontact.net/qr/2891066/firmware_update
www.phoenixcontact.net/qr/2891067/firmware_update
www.phoenixcontact.net/qr/2891072/firmware_update
www.phoenixcontact.net/qr/2891073/firmware_update
www.phoenixcontact.net/qr/2891074/firmware_update
www.phoenixcontact.net/qr/2891079/firmware_update
www.phoenixcontact.net/qr/2891080/firmware_update
www.phoenixcontact.net/qr/2891085/firmware_update
www.phoenixcontact.net/qr/2891086/firmware_update
www.phoenixcontact.net/qr/2891102/firmware_update
www.phoenixcontact.net/qr/2891104/firmware_update
www.phoenixcontact.net/qr/2891119/firmware_update
www.phoenixcontact.net/qr/2891120/firmware_update
www.phoenixcontact.net/qr/2891160/firmware_update
www.phoenixcontact.net/qr/2891161/firmware_update
www.phoenixcontact.net/qr/2891162/firmware_update
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/200.html
cwe.mitre.org/data/definitions/77.html
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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
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mailto:?subject=PHOENIX%20CONTACT%20FL%20SWITCH%203xxx/4xxx/48xx%20Series&body=www.cisa.gov/news-events/ics-advisories/icsa-18-137-02
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
71.6%