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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
58.8%
**ATTENTION:**Exploitable remotely/high skill level is needed to exploit.
**Vendor:**Hirschmann Automation and Control GmbH, a division of Belden Inc.
**Equipment:**Classic Platform Switches
**Vulnerabilities:**Session Fixation, Information Exposure Through Query Strings in GET Request, Cleartext Transmission of Sensitive Information, Inadequate Encryption Strength, Improper Restriction of Excessive Authentication Attempts
Hirschmann reports that the vulnerabilities affect the following Classic Platform Switches products:
Successful exploitation of these vulnerabilities could allow the attacker to hijack web sessions, impersonate a legitimate user, receive sensitive information, and gain access to the device.
Hirschmann strongly recommends users restrict access to remote management access and the following mitigation strategies should be applied:
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 in the NCCIC Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site.
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.
In addition, NCCIC recommends that users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target these vulnerabilities.
A session fixation vulnerability in the web interface has been identified, which may allow an attacker to hijack web sessions.
CVE-2018-5465 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:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
An information exposure through query strings vulnerability in the web interface has been identified, which may allow an attacker to impersonate a legitimate user.
CVE-2018-5467 has been assigned to this vulnerability. A CVSS v3 base score of 4.2 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N).
A cleartext transmission of sensitive information vulnerability in the web interface has been identified, which may allow an attacker to obtain sensitive information through a successful man-in-the-middle attack.
CVE-2018-5471 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:N/UI:R/S:U/C:H/I:N/A:N).
An inadequate encryption strength vulnerability in the web interface has been identified, which may allow an attacker to obtain sensitive information through a successful man-in-the-middle attack.
CVE-2018-5461 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).
An improper restriction of excessive authentication vulnerability in the web interface has been identified, which may allow an attacker to brute force authentication.
CVE-2018-5469 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:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
Ilya Karpov, Evgeniy Druzhinin, Mikhail Tsvetkov, and Damir Zainullin of Positive Technologies reported these vulnerabilities to Belden.
**Critical Infrastructure Sectors:**Multiple sectors
**Countries/Areas Deployed:**Worldwide
**Company Headquarters Location:**St. Louis, Missouri
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-5461
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web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-5471
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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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
58.8%