Mitsubishi Electric Electrical Discharge Machines

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1. EXECUTIVE SUMMARY

  • CVSS v3 9.8
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Mitsubishi Electric Corporation
  • Equipment: Electrical discharge machines
  • Vulnerability: Improper Input Validation

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to disclose, tamper with, destroy or delete information in the products, or cause a denial-of-service condition on the products.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Mitsubishi Electric reports that the following electrical discharge machines are affected by this vulnerability in Microsoft Message Queuing service:

  • Wire-cut EDM MV Series MV1200S D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV2400S D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV4800S D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV1200R D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV2400R D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV4800R D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MV Series MV1200S D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MV Series MV2400S D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MV Series MV4800S D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MV Series MV1200R D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MV Series MV2400R D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MV Series MV4800R D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MP Series MP1200 D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MP Series MP2400 D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MP Series MP4800 D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MP Series MP1200 D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MP Series MP2400 D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MP Series MP4800 D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MX Series MX900 D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MX Series MX2400 D-CUBES Series Standard system BRD-B60W000-**: all versions
  • Wire-cut EDM MX Series MX900 D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Wire-cut EDM MX Series MX2400 D-CUBES Series Special system BRD-B63W+++-**: all versions
  • Sinker EDM SV-P Series SV8P D-CUBES Series Standard system BRD-M60W000-**: all versions
  • Sinker EDM SV-P Series SV12 D-CUBES Series Standard system BRD-M60W000-**: all versions
  • Sinker EDM SV-P Series SV8P D-CUBES Series Special system BRD-M63W+++-**: all versions
  • Sinker EDM SV-P Series SV12 D-CUBES Series Special system BRD-M63W+++-**: all versions
  • Sinker EDM SG Series SG8 D-CUBES Series Standard system BRD-M60W000-**: all versions
  • Sinker EDM SG Series SG12 D-CUBES Series Standard system BRD-M60W000-**: all versions
  • Sinker EDM SG Series SG28 D-CUBES Series Standard system BRD-M60W000-**: all versions
  • Sinker EDM SG Series SG8 D-CUBES Series Special system BRD-M63W+++-**: all versions
  • Sinker EDM SG Series SG12 D-CUBES Series Special system BRD-M63W+++-**: all versions
  • Sinker EDM SG Series SG28 D-CUBES Series Special system BRD-M63W+++-**: all versions

3.2 Vulnerability Overview

3.2.1 Improper Input Validation CWE-20

Remote code execution vulnerability due to Microsoft Message Queuing service on Microsoft Windows exists in electrical discharge machines.

CVE-2023-21554 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Japan

3.4 RESEARCHER

Mitsubishi Electric reported this vulnerability to CISA.

4. MITIGATIONS

Mitsubishi Electric recommends that users install the latest update. For information about how to install the update program, please contact your local service center.

Mitsubishi Electric recommends taking the mitigations listed below to minimize the risk of exploitation of this vulnerability.

  • Use a firewall, virtual private network (VPN) etc., to prevent unauthorized access when Internet access is required.
  • Use within a LAN and block access from untrusted networks and hosts through firewalls.
  • Restrict physical access to the affected products and to personal computers and network devices that can communicate with them.
  • Install anti-virus software on personal computers that can communicate with the affected products.

For specific update instructions and additional details refer to Mitsubishi Electric advisory 2023-022.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability) has been reported to CISA at this time.

5. UPDATE HISTORY

  • February 20, 2024: Initial Publication

Commend WS203VICM

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1. EXECUTIVE SUMMARY

  • CVSS v3 9.4
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Commend
  • Equipment: WS203VICM
  • Vulnerabilities: Argument Injection, Improper Access Control, Weak Encoding for Password

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to obtain sensitive information or force the system to restart.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Commend reports that the following versions of WS203VICM video door station are affected:

  • WS203VICM: version 1.7 and prior

3.2 Vulnerability Overview

3.2.1 ARGUMENT INJECTION CWE-88

A remote, unauthenticated attacker may be able to send crafted messages to the web server of the Commend WS203VICM causing the system to restart, interrupting service.

CVE-2024-22182 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H).

3.2.2 IMPROPER ACCESS CONTROL CWE-284

A remote attacker may be able to bypass access control of Commend WS203VICM by creating a malicious request.

CVE-2024-21767 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.4 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H).

3.2.3 WEAK ENCODING FOR PASSWORD CWE-261

A weak encoding is used to transmit credentials for WS203VICM.

CVE-2024-23492 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.7 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities Sector
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Austria

3.4 RESEARCHER

Aarón Flecha Menéndez of S21sec reported these vulnerabilities to CISA.

4. MITIGATIONS

Although this is an end-of-life product, Commend has created new firmware version WS-CM 2.0 to address the first two issues. The new firmware can be loaded via the program “IP Station Config”. To install the firmware, follow the instructions below:

  1. Log in to the Commend web-portal.
  2. Download and extract the “Terminals Software Package”.
  3. In “IP Station Config”, select the stations to be updated in the table.
  4. Go to: Menu Station > Firmware Download
  5. Select the file “WS-CM 2.0.geh” from the folder “WS-CM” and click on the button Open.

For additional information, please visit CSA-2024-42 on Commend’s cybersecurity website.

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:

  • Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
  • Locate control system networks and remote devices behind firewalls and isolating them from business networks.
  • When remote access is required, use more secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

  • February 20, 2024: Initial Publication

Today’s Wordle Hints (and Answer) for Tuesday, February 20, 2024

If you’re looking for the Wordle answer for February 20, 2024 read on. We’ll share some clues, tips, and strategies, and finally the solution. Today’s puzzle is medium difficult; I got it in four. Beware, there are spoilers below for February 20, Wordle #976! Keep scrolling if you want some hints (and then the answer) to today’s Wordle game.

How to play Wordle

Wordle lives here on the New York Times website. A new puzzle goes live every day at midnight, your local time.

Start by guessing a five-letter word. The letters of the word will turn green if they’re correct, yellow if you have the right letter in the wrong place, or gray if the letter isn’t in the day’s secret word at all. For more, check out our guide to playing Wordle here, and my strategy guide here for more advanced tips. (We also have more information at the bottom of this post, after the hints and answers.)

Ready for the hints? Let’s go!


Does today’s Wordle have any unusual letters?

We’ll define common letters as those that appear in the old typesetters’ phrase ETAOIN SHRDLU. (Memorize this! Pronounce it “Edwin Shirdloo,” like a name, and pretend he’s a friend of yours.)

Three of today’s letters are in our mnemonic, and the other two are also fairly common. No unusual letters today.

Can you give me a hint for today’s Wordle?

Used to light a fire—or the title of a sporting competition. 

Does today’s Wordle have any double or repeated letters?

No repeated letters today. 

How many vowels are in today’s Wordle?

One vowel today. 

What letter does today’s Wordle start with?

Today’s word starts with M. 

What letter does today’s Wordle end with?

Today’s word ends with H. 

What is the solution to today’s Wordle?

Ready? Today’s word is MATCH.

How I solved today’s Wordle

After ARISE and TOUCH, the only thing left to guess was the first letter, since it seemed likely that the combination of the solved letters was -ATCH rather than -TACH. There were a handful of possibilities—LATCH, PATCH, CATCH, BATCH, MATCH—so I guessed LATCH first because L is a common letter. MATCH seemed like the best next choice and the correct answer. 

Wordle 976 4/6

🟨⬛⬛⬛⬛
🟨⬛⬛🟩🟩
⬛🟩🟩🟩🟩
🟩🟩🟩🟩🟩

A primer on Wordle basics

The idea of Wordle is to guess the day’s secret word. When you first open the Wordle game, you’ll see an empty grid of letters. It’s up to you to make the first move: type in any five-letter word. 

Now, you can use the colors that are revealed to get clues about the word: 

  • Green means you correctly guessed a letter, and it’s in the correct position. (For example, if you guess PARTY, and the word is actually PURSE, the P and R will be green.)

  • Yellow means the letter is somewhere in the word, but not in the position you guessed it. (For example, if you guessed PARTY, but the word is actually ROAST, the R, A and T will all be yellow.)

  • Gray means the letter is not in the solution word at all. (If you guessed PARTY and everything is gray, then the solution cannot be PURSE or ROAST.)

With all that in mind, guess another word, and then another, trying to land on the correct word before you run out of chances. You get six guesses, and then it’s game over.

The best starter words for Wordle

What should you play for that first guess? The best starters tend to contain common letters, to increase the chances of getting yellow and green squares to guide your guessing. (And if you get all grays when guessing common letters, that’s still excellent information to help you rule out possibilities.) There isn’t a single “best” starting word, but the New York Times’s Wordle analysis bot has suggested starting with one of these:

  • CRANE

  • TRACE

  • SLANT

  • CRATE

  • CARTE

Meanwhile, an MIT analysis found that you’ll eliminate the most possibilities in the first round by starting with one of these:

  • SALET

  • REAST

  • TRACE

  • CRATE

  • SLATE

Other good picks might be ARISE or ROUND. Words like ADIEU and AUDIO get more vowels in play, but you could argue that it’s better to start with an emphasis on consonants, using a starter like RENTS or CLAMP. Choose your strategy, and see how it plays out.

How to win at Wordle

We have a few guides to Wordle strategy, which you might like to read over if you’re a serious student of the game. This one covers how to use consonants to your advantage, while this one focuses on a strategy that uses the most common letters. In this advanced guide, we detail a three-pronged approach for fishing for hints while maximizing your chances of winning quickly.

The biggest thing that separates Wordle winners from Wordle losers is that winners use their guesses to gather information about what letters are in the word. If you know that the word must end in -OUND, don’t waste four guesses on MOUND, ROUND, SOUND, and HOUND; combine those consonants and guess MARSH. If the H lights up in yellow, you know the solution.

One more note on strategy: the original Wordle used a list of about 2,300 solution words, but after the game was bought by the NYT, the game now has an editor who hand-picks the solutions. Sometimes they are slightly tricky words that wouldn’t have made the original list, and sometimes they are topical. For example, FEAST was the solution one Thanksgiving. So keep in mind that there may be a theme.

Wordle alternatives

If you can’t get enough of five-letter guessing games and their kin, the best Wordle alternatives, ranked by difficulty, include: