Server credential disclosure via plaintext project files
Published Mar 3, 2023 · Updated Mar 5, 2025
Plaintext password storage in Mitsubishi Electric MELSEC controller project files allows remote attackers to obtain FTP or web credentials. Project files retain configured server passwords without encryption, so access to a transmitted or shared file exposes the credentials directly. No device authentication is needed to use the disclosed credentials, which permit login to the configured FTP or web service.
Summary
What happened
Plaintext password storage in Mitsubishi Electric MELSEC controller project files allows remote attackers to obtain FTP or web credentials. Project files retain configured server passwords without encryption, so access to a transmitted or shared file exposes the credentials directly. No device authentication is needed to use the disclosed credentials, which permit login to the configured FTP or web service.
The record
- CVE
- CVE-2023-0457
- Published
- Mar 3, 2023
- Updated
- Mar 5, 2025
- Vendor
- Mitsubishi Electric Corporation
- Product
- MELSEC iQ-R Series R32CPU CPU Module
- Classifications
- CWE-522, CWE-256, T1552.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 3, 2023CVE publishedPublication date reported by the CVE source.
- Mar 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=all versions
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo