ICS-Advisories

Risk Evaluation

Unquoted Windows search path vulnerability in the below mentioned Software for Windows might allow local users to gain privileges via a malicious .exe file.

Zusammenfassung der Gegenmaßnahmen

Ensure that Registry can only be accessed with administrator privileges. HOPCS: Install in a path without spaces and/or select a user with low privileges in the DCOM settings dcomcnfg/Identity. When using X-OPC or X-OTS it is recommended to protect the user program, with the system variables (see Automation Security Manual '3.2.2.2 Access Restrictions'): - Forcing Deactivation - Read-only in RUN - Reload Deactivation

Risk Evaluation

CVE-2024-24781: If the above mentioned products are loaded with Wire speed (1Gbit/s or 100Mbit/s) the resources of the Ethernet-Controller are exhausted and it must be reset by the system automatically after load disappears. This leads to an interruption (DoS) of all other communications of the affected Ethernet-Controller. CVE-2024-24782: Most of the above mentioned products offer a VLAN feature. This helps to segregate ports of the switch included in each of the products. VLAN are meant to segregate networks. Furthermore a MAC-learning mode called 'conservative' is provided. In this mode the ARP table is updated earliest within 1..2 times ARP aging time. X-SB 01 (985210207) is not affected by this CVE.

Zusammenfassung der Gegenmaßnahmen

CVE-2024-24781: All load limiting measures are helpful (e.g. in external devices or also in the switch of the above mentioned products). Please check whether the reduced speed is still sufficient for the desired application. Protect the network with segregation measures and restrict the access of unauthorized network participants (e.g. close unused ports) CVE-2024-24782: Switching the MAC-learning from 'conservative' to 'tolerant' mitigates the above described vulnerability but leads to potential IP-Spoofing and ARP-Poisoning and should therefore be avoided. HIMax and HIQuad X systems can be setup in the way that real physical segregation (between different modules) is used. E.g. it is impossible to ping from one X-COM to another X-COM in the same Rack. HIMatrix should be used in that way that CPU and COM are NOT connected via VLAN e.g. CPU connected to Port 1 and 2, COM Connected to Port 3 and 4.

Risk Evaluation

Weidmueller product ResMa is affected by ASP.NET AJAX vulnerability. Weidmueller has released a new firmware for the affected product to fix the vulnerability.

Zusammenfassung der Gegenmaßnahmen

Update to version V3.7.4

Risk Evaluation

Vulnerabilities have been discovered in the product, mainly caused by HTML injection and crosssite-scripting. The impact of the vulnerability on the affected device may result in an information disclosure and denial of service.

Zusammenfassung der Gegenmaßnahmen

Update to a new version of the firmware you are using: * SocketServer v11.66 * PROFINET v3.4.10 * PROFINET/Modbus v1.0.8 * EtherNet/IP v7.23 * EIP/Modbus v1.09 * Modbus Router v7.10 * Modbus Server v7.12 * Modbus TCP v7.12

Risk Evaluation

Security researchers at ESET have reported a vulnerability called Kr00k (CVE-2019- 15126) which affects encrypted WiFi traffic for devices using Broadcom or Cypress chipsets. The vulnerability may allow an attacker to decrypt some WPA2- Personal/Enterprise traffic by forcing an AP/client to start utilizing an all-zero encryption key (similar to KRACK vulnerability).

Zusammenfassung der Gegenmaßnahmen

Pepperl+Fuchs is continuously and rigorously working closely with our partner to patch all affected Devices. Update for Tab-Ex 02 is planned for 05/2020 ECOM mobile devices are normally used in the corporate network. This implies that outgoing connections and local software installations have to be configured by administrators. It should be ensured that the data connections are additionally encrypted, e.g. HTTPS or SSH.

Risk Evaluation

Weidmüller product PROCON-WIN is affected by hard-coded credentials. Weidmüller has released a new version of the affected product to fix the vulnerability.

Zusammenfassung der Gegenmaßnahmen

Update to 5.7.14.1

Risk Evaluation

Multiple vulnerabilities in the WAGO I/O-Check Service were reported.

Zusammenfassung der Gegenmaßnahmen

- Disable I/O-Check service - Restrict network access to the device. - Do not directly connect the device to the internet.

Risk Evaluation

The following firmware versions installed on several devices are are vulnerable due to a vulnerability in CODESYS Control.

Zusammenfassung der Gegenmaßnahmen

The vulnerability is only exploitable if the an attacker has successfully logged in with according user rights. To prevent attackers from exploiting the vulnerability it is recommend to change the standard password in the web based management.

Risk Evaluation

Critical vulnerability has been discovered in the utilized component 499ES EtherNet/IP Stack by Real Time Automation (RTA).

Zusammenfassung der Gegenmaßnahmen

An external protective measure is required. - Minimize network exposure for affected products and ensure that they are not accessible via the Internet. - Isolate affected products from the corporate network. - If remote access is required, use secure methods such as virtual private networks (VPNs).

Risk Evaluation

Critical vulnerability has been discovered in the utilized component PROFINET IO Device by Hilscher Gesellschaft für Systemautomation mbH. The impact of the vulnerability on the affected device is that it can - no longer perform acyclic requests - may drop all established cyclic connections may - disappear completely from the network. For more information see advisory by Hilscher: https://kb.hilscher.com/display/ISMS/2020-12-03+Denial+of+Service+vulnerability+in+PROFINET+IO+Device Update 20.11.2024: Products have been added

Zusammenfassung der Gegenmaßnahmen

An external protective measure is required. - Minimize network exposure for affected products and ensure that they are not accessible via the Internet. - Isolate affected products from the corporate network. - If remote access is required, use secure methods such as virtual private networks (VPNs).

Risk Evaluation

Multiple issues in Weidmueller Industrial WLAN devices have been found. Initial publication date: 2021-06-23 Update A publication date: 2021-07-02 Update A CVE-2021-33534 CVSS: 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) Description: An exploitable command injection vulnerability exists in the hostname functionality of Weidmueller Industrial WLAN devices. A specially crafted entry to network configuration information can cause execution of arbitrary system commands, resulting in full control of the device. An attacker can send various requests while authenticated as a high privilege user to trigger this vulnerability.

Zusammenfassung der Gegenmaßnahmen

For all potential vulnerabilities, customers can download a patched firmware to secure their Industrial WLAN devices properly. Please follow the procedure below to download and install the latest firmware for your device: 1. Use the link: [www.weidmueller.com](www.weidmueller.com) 2. Enter the product number of the Industrial WLAN device you want to update in the search field on the webpage and press "Enter". 3. On the next page, expand the drop-down menu **"Downloads"**. 4. Download the respective firmware from the download table. 5. Install the firmware on your device. Patched firmware versions for all affected products | Product number | Product name | Firmware version | |---------------|-----------------------------------|------------------------------------------| | 2536600000 | IE-WL-BL-AP-CL-EU | <= V1.16.21 (Build 21010513) | | 2536650000 | IE-WLT-BL-AP-CL-EU | <= V1.16.21 (Build 21010513) | | 2536660000 | IE-WL-BL-AP-CL-US | <= V1.16.21 (Build 21010513) | | 2536670000 | IE-WLT-BL-AP-CL-US | <= V1.16.21 (Build 21010513) | | 2536680000 | IE-WL-VL-AP-BR-CL-EU | <= V1.11.13 (Build 21010513) | | 2536690000 | IE-WLT-VL-AP-BR-CL-EU | <= V1.11.13 (Build 21010513) | | 2536700000 | IE-WL-VL-AP-BR-CL-US | <= V1.11.13 (Build 21010513) | | 2536710000 | IE-WLT-VL-AP-BR-CL-US | <= V1.11.13 (Build 21010513) | If a firmware update is available for your device, please follow the steps above to install it.

Risk Evaluation

Multiple Vulnerabilities in a software service of shDIALUP can lead to arbitrary code execution due to improper privilege management. Update A, 2022-03-28 Updated CVSS score from CVE-2021-33527 from 7.8 to 9.8 due to new information about the vulnerability

Zusammenfassung der Gegenmaßnahmen

Update shDialup to 3.9R0.5

Risk Evaluation

The communication between e!Cockpit and the programmable logic controller is not encrypted. The broken cryptographic algorithm allows an attacker to decode the password for the e!Cockpit communication and with this to manipulate the application. The password used by e!Cockpit for authentication against the PLC is encrypted with a hard-coded key. An attacker is able to decrypt the password by listening to the network traffic.

Zusammenfassung der Gegenmaßnahmen

* Follow the instructions in WAGO's handbook Cyber Security for Controller * Restrict network access to the device. * Do not directly connect the device to the internet * Use an encrypted VPN connection to the device * Disable unused TCP/UDP-ports Typically the e!Cockpit communication is only needed during commissioning of the programmable logic controller and not during normal operations. WAGO highly recommends disabling the TCP Port 11740 and UDP Port 1740 after commissioning or using an encrypted VPN connection to the device.

Risk Evaluation

The Web-Based Management (WBM) of WAGOs programmable logic controller (PLC) is typically used for administration, commissioning and updates. With special crafted requests it is possible to change some special parameters without authentication.

Zusammenfassung der Gegenmaßnahmen

* Restrict network access to the device. * Do not directly connect the device to the internet. * Disable unused TCP/UDP ports. * Disable web-based management ports 80/443 after the configuration phase

Risk Evaluation

The Web-Based Management (WBM) of WAGOs programmable logic controller (PLC) is typically used for administration, commissioning and updates. The SNMP configuration page of the device is vulnerable for a persistent XSS (Cross-Site Scripting) attack.

Zusammenfassung der Gegenmaßnahmen

* Restrict network access to the device. * Use strong passwords * Do not directly connect the device to the internet * Disable unused TCP/UDP-ports

Risk Evaluation

Multiple products of PILZ utilise a third-party TCP/IP implementation - the "Niche Ethernet Stack". This TCP/IP stack contains multiple vulnerabilities which are therefore affecting the products listed above.

Zusammenfassung der Gegenmaßnahmen

It is adviced to use firewalls or similar network security devices to prevent unauthorized network communication to the products affected.

Risk Evaluation

Several vulnerabilities exist within firmware versions up to and including v1.5.48.

Zusammenfassung der Gegenmaßnahmen

In order to prevent the exploitation of the reported vulnerabilities, we recommend that the affected units be updated with the following three firmware packages: - U-Boot bootloader version 1.36 - System image version 1.52 - Application base version 1.6.11

Risk Evaluation

Pepperl+Fuchs analyzed WirelessHART-Gateways in respect of a critical vulnerability within the Firmware. An attacker may exploit this vulnerability to get access to files and access restricted directories that are stored on the device by manipulating file parameters that reference these. Incoming HTTP requests using fcgi-bin/wgsetcgi and a filename parameter allow a directory / path traversal. A publicly available exploit already exists for this vulnerability.

Zusammenfassung der Gegenmaßnahmen

A Firmware (version see table below), which solves the problem, is available. Please contact your support representative for this particular firmware package and update the corresponding product. | Product ID | Version | Bus-Interface of Device | |-----------------|----------|-------------------------| | WHA-GW-*-ETH | 03.00.08 | Modbus | | WHA-GW-*-ETH.EIP | 02.00.01 | Ethernet/IP |

Risk Evaluation

Critical vulnerabilities have been discovered in the product and in the utilized components jQuery by jQuery Team and TLS Version 1.0/1.1. The impact of the vulnerabilities on the affected device may result in - denial of service - remote code execution - code exposure

Zusammenfassung der Gegenmaßnahmen

An external protective measure is required. - Minimize network exposure for affected products and ensure that they are not accessible via the Internet. - Isolate affected products from the corporate network. - If remote access is required, use secure methods such as virtual private networks (VPNs).

Risk Evaluation

Critical vulnerabilities have been discovered in the utilized component TRECK TCP/IP Stack by Digi International Inc. For more information see advisory by Digi International Inc.: Digi International Security Notice - TRECK TCP/IP Stack "RIPPLE20" VU#257161 ICS-VU-035787 | Digi International

Zusammenfassung der Gegenmaßnahmen

An external protective measure is required. - Minimize network exposure for affected products and ensure that they are not accessible via the Internet. - Isolate affected products from the corporate network. - If remote access is required, use secure methods such as virtual private networks (VPNs).

Risk Evaluation

The Weidmueller Remote I/O (IP20) fieldbus couplers (u-remote) are affected by several vulnerabilities of the third-party TCP/IP Niche stack. An attacker may use crafted IP packets to cause a denial of service or breach of integrity of the affected products. Weidmueller recommends restricting network access from the internet and also locally to reduce the attack vector to a manageable minimum.

Zusammenfassung der Gegenmaßnahmen

Fieldbuses (including Industrial Ethernet protocols) in general are not intended for direct connection with the internet, as they lack a proper set of security capabilities. This also applies to Weidmüller IP20 Remote I/O fieldbus couplers, which are developed and designed for operation in closed industrial networks. - Do not directly connect the affected products to the internet. - Restrict network access to the affected products by proper secured network infrastructure (e.g. routers, firewalls, DMZ, VPNs). - Restrict physical access to the industrial network and affected products (e.g cabinets, seals, closures).

Risk Evaluation

The fdtCONTAINER component is integrated into an application (host application). The fdtCONTAINER application is a specific host application which integrates the fdtCONTAINER component. The fdtCONTAINER component exchanges binary data blobs with such a host application. Typically, the host application saves these binary data blobs into a project storage (project file or a project database). To manipulate the data inside the project storage, the attacker needs write access to this project storage. Additionally, the manipulated project needs to be opened by the host application. It depends on the host application whether opening the project requires a user action or not. In fdtCONTAINER applications, the user has to open the manipulated project file manually. In the case of opening a stored project, the deserialization of the manipulated data can be exploited.

Zusammenfassung der Gegenmaßnahmen

1. Exchange project data only via secure exchange services 2. Use appropriate means to protect the project storage from unauthorized manipulation 3. Do not open project data from an unknown source 4. Reduce the user rights of the host application to the necessary minimum

Risk Evaluation

The firmware release has a dynamic token for each request submitted to the server, which makes repeating requests and analysis complex enough. Nevertheless, it's possible and during the analysis it was discovered that it also has an issue with the access-control matrix on the server-side.

Zusammenfassung der Gegenmaßnahmen

Customers should configure a perimeter firewall to block traffic from untrusted networks and users to the device. These recommendations will be incorporated into the device documentation (operating instructions) Change default password for operator, service and admin account. Endress+Hauser will not change this behavior. Customers are recommended to take the measures for Temporary Fix / Mitigation as described above.

Risk Evaluation

Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.

Zusammenfassung der Gegenmaßnahmen

Make sure that no unauthorized access to the production environment is possible. Avoid using the above listed software with Windows administrator privileges if other users with lower privileges have access to the same software installation.

Risk Evaluation

For further Information please refer to WIBU Advisories directly at https://wibu.com/support/security-advisories.html and the aforementioned CVE-IDs.

Zusammenfassung der Gegenmaßnahmen

WIBU SYSTEMS has released a new Code Meter Runtime version 7.10a dated on 16.9.2020. All the known vulnerabilities are fixed with this version. The version is available at https://www.wibu.com/support