5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.975 High
EPSS
Percentile
100.0%
Researcher Bob Radvanovsky of Infracritical has notified NCCIC/ICS-CERT that Innominate has released a new firmware version that mitigates the OpenSSL HeartBleed vulnerability in the mGuard products.
Phoenix Contact branded devices are not likely to be affected, but Phoenix Contact has released a new firmware version to alleviate concern about this vulnerability affecting its products.
This vulnerability could be exploited remotely. Exploits that target the OpenSSL Heartbleed vulnerability are known to be publicly available.
The following mGuard versions are affected:
mGuard firmware versions prior to 8.0.0 whether running on Innominate, Phoenix Contact, or other brands of devices are NOT affected.
mGuard firmware Versions 8.0.0 and 8.0.1 use the OpenSSL cryptographic library and transport layer security (TLS) implementation Version 1.0.1, which is known to be vulnerable to the HeartBleed vulnerability.
Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.
Innominate is a German-based company that sells products worldwide through its international partners. Innominate was acquired by Phoenix Contact in 2008.
The affected products, the mGuard family of products, are industrial security routers. They can be found in many critical infrastructure sectors, including Communications, Healthcare and Public Health, and Critical Manufacturing.
Because of the unpredictable memory layout of HTTPS communication, it is possible that the private key of the mGuard web graphic user interface could be disclosed. An attacker could use this key to impersonate the authenticated user and perform a man-in-the-middle attack.
CVE-2014-0160NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-0160, web site last accessed April 15, 2014. has been assigned to this vulnerability. A CVSS v2 base score of 5.0 has been assigned; the CVSS vector string is (AV:N/AC:L/Au:N/C:P/I:N/A:N).CVSS Calculator, http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:P/I:N/A:N, web site last accessed April 15, 2014.
This vulnerability could be exploited remotely.
Exploits that target this vulnerability are publicly available.
An attacker with a low skill would be able to exploit this vulnerability.
All users of the affected mGuard firmware Versions 8.0.0 and 8.0.1 should upgrade to mGuard firmware Version 8.0.2. Innominate recommends users update SSL keys on the affected products after upgrade. The mGuard firmware Version 8.0.2 provides a combined function to replace both the HTTPS and SSH keys.
For more information regarding this vulnerability and specific instructions on how to install the latest firmware version, please see the Innominate Security Advisory published April 11, 2014, at the following location:
Phoenix Contact branded devices are not vulnerable to this issue, as they are using mGuard firmware Version 7.5 that is not affected by HeartBleed. Only mGuard firmware Versions 8.0.0 and 8.0.1 are affected. Phoenix Contact has posted the 8.0.2 firmware patch release on its web site:
<https://www.phoenixcontact.com/mguardsecurity>
ICS-CERT encourages asset owners to take additional defensive measures to protect against this and other cybersecurity risks.
ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page at: http://ics-cert.us-cert.gov/content/recommended-practices. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Additional mitigation guidance and recommended practices are publicly available in the ICS‑CERT Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Mitigation Strategies, that is available for download from the ICS-CERT web site (http://ics-cert.us-cert.gov/).
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.
www.innominate.com/data/downloads/software/innominate_security_advisory_20140411_001_en.pdf
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5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.975 High
EPSS
Percentile
100.0%