-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-324467: OS Command Injection in Spectrum Power 4.7 Publication Date: 2019-04-09 Last Update: 2019-04-09 Current Version: 1.0 CVSS v3.0 Base Score: 10.0 SUMMARY ======= Versions of Spectrum Power™ 4, that use the customer specific project enhancement (PE) Web Office Portal (WOP) are affected by a possible OS Command Injection vulnerability. Siemens has released patches for the affected version and recommends to apply specific countermeasures until these patches can be applied. AFFECTED PRODUCTS AND SOLUTION ============================== * Spectrum Power™ 4 - Affected versions: with Web Office Portal - Remediation: Take over bugfix bf-47456_PE_WOP_fix. Bugfix bf-47456_PE_WOP_fix for Web Office Portal can be obtained from the Siemens Energy Customer Support Center at: - Download: support.energy@siemens.com WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Turn off the web server or limit access to the web server by an external firewall. GENERAL SECURITY RECOMMENDATIONS ================================ Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines to Secure Substations can be found at: https://www.siemens.com/gridsecurity PRODUCT DESCRIPTION =================== Spectrum Power™ provides basic components for SCADA, communications, and data modeling for control and monitoring systems. Application suites can be added to optimize network and generation management for all areas of energy management. VULNERABILITY CLASSIFICATION ============================ The vulnerability classification has been performed by using the CVSS scoring system in version 3.0 (CVSS v3.0) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer's environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring. * Vulnerability CVE-2019-6579 An attacker with network access to the web server on port 80/TCP or 443/TCP could execute system commands with administrative privileges. The security vulnerability could be exploited by an unauthenticated attacker with network access to the affected service. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises confidentiality, integrity or availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known. CVSS v3.0 Base Score: 10.0 CVSS v3.0 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C ACKNOWLEDGMENTS =============== Siemens thanks the following parties for their efforts: * Applied Risk for coordinated disclosure ADDITIONAL INFORMATION ====================== For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories HISTORY DATA ============ V1.0 (2019-04-09): Publication Date TERMS OF USE ============ Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use. -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJcq+CAAAoJELtnleqOVdUuQcUP/2CodmKlsxrCTuZwS9jFEZCu oBCcJKLHklauo1E+OmbooE05/98Gosmx/iRdoJhE7AFibZKOAj2KvNeCulgs4ucd Z5tQKBm7HjK7VIIyy3kIweUmeH0eZ92OMecFbXgVRGXmBvaiMxpNHAZjB6T+SMEj l/AEvlz7HcF7vIoaLXHdw7Crs/2bz+MnqZQ3GSzYFWSCowb40PPhos3Vpx8gICMV nw38Cd/9L/auJ2ubsaN37jgoarAb1PPJG/6e4NtTfpmPyIstvPJJsFkLeY9kQuW4 bJQeUyVlroUPgIt/3KdeVUODMW2gAaTy0ogO63W6JXL8F6AVzQ/daVVdJVPfrUBg yzaDkB5yrX8DcNN9KNRUSL4gQHacYaJ8/+0lUfwU3rKluLDTDA4ATstXqij6DGoG V7msxUakRkoLy9S/J3AhiQW3UIrJloS0KkMscNUjxFK9wHfKoziS5EHMOglVep3p 6PCcBpqxQWZrY02aMzUAkn2pAnnS/8dkR1aF9k+r0XVe6pZPxgjxUEjXH7inf3RF 4sshMz6Kq0gsHKKf1Tp8S36e10rdGBTM+wBWK8cE7I+f6gKz5KIel97Nl2Qd5+GE 1Lzq+NvSm5MIxYWrTto/RTXxQ2lzP1COOwRpnrkNVn/01wkjfP4fWAdE3OACwLjo o9kIQ92RD8Tk98gmbtlr =UkAj -----END PGP SIGNATURE-----