SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-723791370] Siemens SIPROTEC 4 and SIPROTEC Compact

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2017-07-06OtherSiemensSiemens reported these vulnerabilities to ICS-CERT when they made firmware available to fix them. N/ACVE-2015-5374 CVE-2016-4784 CVE-2016-4785 CVE-2016-7112 CVE-2016N/AN/AN/A

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# Siemens SIPROTEC 4 and SIPROTEC Compact
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### VULNERABLE VENDOR
Siemens


### VULNERABLE PRODUCT
SIPROTEC 4 and SIPROTEC Compact



### RESEARCHER
Siemens reported these vulnerabilities to ICS-CERT when they made firmware available to fix them.



### AFFECTED PRODUCTS

Siemens reports that the vulnerabilities affect the following SIPROTEC 4 and SIPROTEC Compact protection, control, measurement, and automation devices:

Firmware variants for EN100 Ethernet modules as optional for SIPROTEC 4 and SIPROTEC Compact:

Firmware variant PROFINET IO: All versions prior to V1.04.01,
Firmware variant Modbus TCP: All versions,
Firmware variant DNP3 TCP: All versions, and
Firmware variant IEC 104: All versions.
EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80: All firmware versions prior to V1.02.02
SIPROTEC 7SJ66 and 7SD686, 7SJ686, 7UT686: All versions



### IMPACT

Successful exploitation of these vulnerabilities could cause a denial-of-service condition, allow an attacker access to sensitive information, or allow an attacker to perform administrative functions.



### VULNERABILITY OVERVIEW

IMPROPER INPUT VALIDATION CWE-20
Specially crafted packets sent to Port 50000/UDP could cause a denial of service of the affected device.
A manual reboot may be required to recover the service of the device.
CVE-2015-5374 has been assigned to this vulnerability.
A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)


MISSING AUTHORIZATION CWE-862
The integrated web server (Port 80/TCP) of the affected devices could allow remote attackers to obtain sensitive device information if network access was obtained.
CVE-2016-4784 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)


MISSING AUTHORIZATION CWE-862
The integrated web server (Port 80/TCP) of the affected devices could allow remote attackers to obtain a limited amount of device memory content if network access was obtained.
CVE-2016-4785 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)


MISSING AUTHORIZATION CWE-862
Attackers with network access to the device's web interface (Port 80/TCP) could circumvent authentication and perform certain administrative operations.
CVE-2016-7112 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)


IMPROPER INPUT VALIDATION CWE-20
Specially crafted packets sent to Port 80/TCP could cause the affected device to go into defect mode.
CVE-2016-7113 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:N/I:N/A:H)


IMPROPER AUTHENTICATION CWE-287
Attackers with network access to the device's web interface (Port 80/TCP) could circumvent authentication and perform certain administrative operations.
A legitimate user must be logged into the web interface for the attack to be successful.
CVE-2016-7114 has been assigned to this vulnerability.
A CVSS v3 base score of 4.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)





### BACKGROUND

Critical Infrastructure Sector: Energy
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Germany




### MITIGATION

Siemens provides updates for the following affected products and recommends users update to the latest version:

Firmware variants for EN100 Ethernet modules as optional for SIPROTEC 4 and SIPROTEC Compact:

Firmware variant PROFINET IO: Update to V1.04.01
Firmware variant Modbus TCP: Update to V1.10.01
http://www.siemens.com/downloads/siprotec-4


http://www.siemens.com/downloads/siprotec-compact


EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80: Update to firmware V1.02.02 by contacting the Siemens energy hotline at: support.energy@siemens.com


SIPROTEC 7SJ66: update to firmware V4.23
http://www.siemens.com/downloads/siprotec-4


SIPROTEC 7SJ686: update to firmware V4.86
http://www.siemensenergysector.com/ProductRelatedDown.aspx?ProductId=51


SIPROTEC 7UT686: update to firmware V4.01
http://www.siemensenergysector.com/ProductRelatedDown.aspx?ProductId=68


SIPROTEC 7SD686: update to firmware V4.04
http://www.siemensenergysector.com/ProductRelatedDown.aspx?ProductId=64


Siemens is preparing updates for the remaining affected products and recommends the following mitigations in the meantime:

Apply secure substation concepts and defense-in-depth measures.

Please see the specific product manual for more information. Manuals can be obtained from the downloads menu at the following Siemens web site:

http://www.siemens.com/gridsecurity


Restrict network access to Port 80/TCP and Port 50000/UDP
Siemens recommends users protect network access with appropriate mechanisms such as firewalls, segmentation, and VPNs. Siemens also advises that users configure the operational environment according to Siemens' Operational Guidelines for Industrial Security:

https://www.siemens.com/cert/operational-guidelines-industrial-security


For more information on this vulnerability and more detailed mitigation instructions, please see Siemens Security Advisory SSA-323211 at the following location:

http://www.siemens.com/cert/advisories