Vulnerability in Yokogawa B\/m9000cs
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Yokogawa B\/m9000cs
- Yokogawa B\/m9000 Vp
- Yokogawa Centum Cs 1000
- Yokogawa Centum Cs 3000
- Yokogawa Centum Cs 3000 Entry Class
- Yokogawa Centum Vp
- Yokogawa Centum Vp Entry Class
- Yokogawa Exaopc
- Yokogawa Electric Corporation Centum Series — versions 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
Weakness classification (CWE)
References
- www.yokogawa.com/library/resources/white-papers/yokogawa-security-advisory-repo… (Vendor Advisory)
- jvn.jp/en/vu/JVNVU98775218/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-26593?
- CVE-2023-26593 is a high-severity vulnerability in Yokogawa B\/m9000cs, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.8/10. Published 2023-04-11.
- How severe is CVE-2023-26593?
- High severity. CVSS v3 base score is 7.8 out of 10.