VDE-2021-056

WAGO: Multiple Vulnerabilities in CODESYS Runtime 2.3 and WebVisualisation

view advisory published 2021-11-16

Multiple vulnerabilities were reported in CODESYS 2.3 Runtime. The CODESYS 2.3 Runtime is an essential component in several WAGO PLCs. All vulnerable PLCs are listed in chapter 'Affected Products'. https://www.codesys.com/security/security-reports.html

describes (6)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-34596US	medium6.5	0.83% (57th)	—	2021-10-26
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-s…
CVE-2021-34595US	high8.1	0.85% (58th)	—	2021-10-26
A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting…
CVE-2021-34586US	high7.5	13.7% (97th)	—	2021-10-26
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service con…
CVE-2021-34585US	medium5.0	0.90% (59th)	—	2021-10-26
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer deref…
CVE-2021-34584US	critical9.1	1.08% (65th)	—	2021-10-26
Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to…
CVE-2021-34583US	high7.5	8.84% (95th)	—	2021-10-26
Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V…

references

External citations — patches, advisories, analysis.

VDE-2021-056: WAGO: Multiple Vulnerabilities in CODESYS Runtime 2.3 and WebVisualisation - HTMLself
PHOENIX CONTACT advisory overview at CERT@VDEexternal
VDE-2021-056: WAGO: Multiple Vulnerabilities in CODESYS Runtime 2.3 and WebVisualisation - CSAFself

remediations (12)

Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Mitigation
1. Use general security best practices to protect systems from local and network attacks. 2. Do not allow direct access to the device from untrusted networks. 3. Update to the latest firmware according to the table in chapter solutions. 4. Disable the CODESYS 2.3 WebVisualisation and CODESYS 2.3 port 2455. For further impact information and risk mitigation, please refer to the official CODESYS Advisory Website at https://www.codesys.com/security/security-reports.html
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |
Fixed
UPDATE A: fixed Firmware versions for 750-890/0xx-xxx, 750-891 and 750-893 We recommend all effected users with CODESYS 2.3 Runtime PLCs to update to the firmware version listed below. Series Ethernet Controller | Article Number | Fixed Firmware Versions | Available | |-------------------------|--------------------------|---------------------------| | 750-823 | >=FW10 | January 2022 | | 750-829 | >=FW17 | After BACnet certification | | 750-831/000-00x | >=FW17 | After BACnet certification | | 750-832/000-00x | >=FW10 | After BACnet certification | | 750-852 | >=FW17 | Q1 2022 | | 750-862 | >=FW10 | January 2022 | | 750-880/0xx-xxx | >=FW17 | Q1 2022 | | 750-881 | >=FW17 | Q1 2022 | | 750-882 | >=FW17 | Q1 2022 | | 750-885/0xx-xxx | >=FW17 | Q1 2022 | | 750-889 | >=FW17 | Q1 2022 | | 750-890/0xx-xxx | >=FW10 | January 2022 | | 750-891 | >=FW10 | January 2022 | | 750-893 | >=FW10 | January 2022 | PFC200 Controller | Article Number | Affected Firmware Versions | Approx. Available | |-------------------------|----------------------------|--------------------| | 750-8202/xxx-xxx | >=FW20 | January 2022 | | 750-8203/xxx-xxx | >=FW20 | January 2022 | | 750-8204/xxx-xxx | >=FW20 | January 2022 | | 750-8206/xxx-xxx | >=FW20 | January 2022 | | 750-8207/xxx-xxx | >=FW20 | January 2022 | | 750-8208/xxx-xxx | >=FW20 | January 2022 | | 750-8210/xxx-xxx | >=FW20 | January 2022 | | 750-8211/xxx-xxx | >=FW20 | January 2022 | | 750-8212/xxx-xxx | >=FW20 | January 2022 | | 750-8213/xxx-xxx | >=FW20 | January 2022 | | 750-8214/xxx-xxx | >=FW20 | January 2022 | | 750-8216/xxx-xxx | >=FW20 | January 2022 | | 750-8217/xxx-xxx | >=FW20 | January 2022 |

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