CVE-2023-26593 Hardcoded credentials in CENTUM series
Attackers with local access can escalate privileges by tampering with cleartext password files in Yokogawa CENTUM systems using specific authentication modes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-26593?
CVE-2023-26593 is a high-severity vulnerability in Yokogawa Electric Corporation CENTUM series, published on 11 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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
Weakness: CWE-312
Which versions are affected by CVE-2023-26593?
It affects 8 products.
Products include Yokogawa B\/M9000 Vp, Yokogawa B\/M9000cs, Yokogawa Centum Cs 1000, Yokogawa Centum Cs 3000, Yokogawa Centum Cs 3000 Entry Class, Yokogawa Centum Vp and 2 more.
How do I fix CVE-2023-26593?
No fix has been published for CVE-2023-26593 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-26593 being exploited?
There is no known exploitation of CVE-2023-26593 in the wild and no public exploit code.
Other vulnerabilities in Yokogawa Electric Corporation CENTUM series
- CVE-2022-26034 Auth bypass in CENTUM VP series with VP6E5000(AD Suite Engineering ServerFunction) installed and B/M9000 VP
- CVE-2022-30707 Information disclosure in CAMS for HIS
- CVE-2014-3888 Memory corruption in n/a
- CVE-2014-0782 Yokogawa CENTUM CS 3000 Stack-based Buffer Overflow
- CVE-2022-27188 Command injection in CENTUM VP series with VP6E5150(Graphic Builder) installed and B/M9000 VP
Sources
Also known as GHSA-hfx7-v8g3-wm7q.