• CVE-2023-50236:
• In Polarion Windows installation, restrict permissions of BUILTIN\Users from accessing the entire Polarion installation folders to prevent data corruption. Please refer to the Additional Information section for further details.
• Polarion installations in Linux are not impacted. Hence no actions are required.
• CVE-2024-23813:
• If DOORS connector is not used in the environment, it is advised to limit unauthenticated access within the Apache configuration. For further details, please refer to the Additional Information section.

• If DOORS connector is used in the environment, restrict access to DOORS connector endpoint to the IP address of the DOORS instance with which Polarion synchronizes its data, which can be done in two ways:

  • Firewall rules set by network administrator (preferred and safest method).
  • Configure Apache using guidelines https://httpd.apache.org/docs/2.4/howto/access.html

  For further details, please refer to the Additional Information section.

Please follow the General Security Recommendations.

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

CVE-2023-50236

In order to restrict file and folder path permissions post installation for the Windows Polarion installation, execute below commands from Windows powershell as administrator. Please note that POLARION_HOME is the path to the folder named “Polarion”, do not confuse it with Polarion/polarion.

• icacls "<POLARION_HOME>" /grant "BUILTIN\Administrators:(OI)(CI)F" /grant "NT AUTHORITY\SYSTEM:(OI)(CI)F"
• icacls "<POLARION_HOME>" /inheritance:r
• icacls "<POLARION_HOME>\bundled\postgres" /grant "BUILTIN\Users:(OI)(CI)RX"

The below command is required by Postgresql installation. It provides read and execution rights on "data" folder only and those rights are not propagated to the subfolders. The "data" folder itself doesn’t contain any file and the contained subfolders will not be accessible by BUILTIN\Users, thus no confidential data can be disclosed. icacls "<POLARION_HOME>\data" /grant "BUILTIN\Users:RX"

The below command is optional. It can be used to grant access to BUILTIN\Users to the README.html and README_OSS.html located into the POLARION_HOME. icacls "<POLARION_HOME>\*.html" /grant "BUILTIN\Users:R"

CVE-2024-23813

DOOR Connectors are not used: It is recommended to deny unauthenticated access using the below steps:

• Add the following in polarion(-cluster).conf in any Polarion node instance. <If "%{REQUEST_URI} =~ m#^/polarion/doorsconnector/rest#"> Require all denied </If>
• Enable the mod_headers in httpd(-cluster).conf by adding LoadModule headers_module modules/mod_headers.so after any LoadModule directives. If #LoadModule headers_module modules/mod_headers.so is present then remove the # to make it effective.
• Restart Apache Http server on every node.

DOOR Connectors are used: It is recommended to restrict the access via Apache configuration. This can be done in two ways by adding the below configuration to polarion(-cluster).conf of every Polarion node.

• To restrict the access based on the hostname, the allowed hostnames must be separated by space. This can be done by using the fully qualified domain name (or a partial domain name). <If "%{REQUEST_URI} =~ m#^/polarion/doorsconnector/rest#"> Require host myhost.mycompanydomain.com myhostalias.mycompanydomain.com</If>

• To restrict the access based on the client IP address, the allowed IP addresses must be separated by space. <If '%{REQUEST_URI} =~ m#^/polarion/doorsconnector/rest#'> Require ip 127.0.0.1 123.123.123.7 </If>

• Enable the mod_headers in httpd(-cluster).conf by adding LoadModule headers_module modules/mod_headers.so after any LoadModule directives. If #LoadModule headers_module modules/mod_headers.so is present then remove the # to make it effective.

• Restart Apache Http server on every node.

Any request coming from non legit hostnames or IP addresses will produce 403 HTTP Status code.

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