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CVE-2023-26593

HIGHCVSS 7.8/10EPSS 0.14%

Last modified

CVE-2023-26593 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. CENTUM series provided by Yokogawa Electric Corporation are vulnerable to cleartext storage of sensitive information. If an attacker who can login or access the computer where the affected product is installed tampers the password file stored in the computer, the user privilege which CENTUM managed may be escalated. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

CENTUM series provided by Yokogawa Electric Corporation are vulnerable to cleartext storage of sensitive information. If an attacker who can login or access the computer where the affected product is installed tampers the password file stored in the computer, the user privilege which CENTUM managed may be escalated. As a result, the control system may be operated with the escalated user privilege. To exploit this vulnerability, the following prerequisites must be met: (1)An attacker has obtained user credentials where the affected product is installed, (2)CENTUM Authentication Mode is used for user authentication when CENTUM VP is used. The affected products and versions are as follows: CENTUM CS 1000, CENTUM CS 3000 (Including CENTUM CS 3000 Entry Class) R2.01.00 to R3.09.50, CENTUM VP (Including CENTUM VP Entry Class) R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 and later, B/M9000 CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R7.04.51 and R8.01.01 and later

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.14%

3.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
YokogawaB\/M9000 Vp>= r6.01.01, <= r7.04.51
YokogawaB\/M9000 Vp>= r8.01.01
YokogawaB\/M9000cs>= r5.04.01, <= r5.05.01
YokogawaCentum Cs 1000>= r2.01.00, <= r3.09.50
YokogawaCentum Cs 3000>= r2.01.00, <= r3.09.50
YokogawaCentum Cs 3000 Entry Class>= r2.01.00, <= r3.09.50
YokogawaCentum Vp>= r4.01.00, <= r4.03.00
YokogawaCentum Vp>= r5.01.00, <= r5.04.20
YokogawaCentum Vp>= r6.01.00
YokogawaCentum Vp Entry Class>= r4.01.00, <= r4.02.00
YokogawaCentum Vp Entry Class>= r5.01.00, <= r5.04.20
YokogawaCentum Vp Entry Class>= r6.01.00
YokogawaExaopc>= r1.01.00, <= r1.20.00
YokogawaExaopc>= r2.01.00, <= r2.10.00
YokogawaExaopc>= r3.01.00

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-26593?
CENTUM series provided by Yokogawa Electric Corporation are vulnerable to cleartext storage of sensitive information. If an attacker who can login or access the computer where the affected product is installed tampers the password file stored in the computer, the user privilege which CENTUM managed may be escalated. As a result, the control system may be operated with the escalated user privilege. To exploit this vulnerability, the following prerequisites must be met: (1)An attacker has obtained user credentials where the affected product is installed, (2)CENTUM Authentication Mode is used for user authentication when CENTUM VP is used. The affected products and versions are as follows: CENTUM CS 1000, CENTUM CS 3000 (Including CENTUM CS 3000 Entry Class) R2.01.00 to R3.09.50, CENTUM VP (Including CENTUM VP Entry Class) R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 and later, B/M9000 CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R7.04.51 and R8.01.01 and later
How severe is CVE-2023-26593?
CVE-2023-26593 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2023-26593?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-26593?

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Source: NVD / NIST