Unauthenticated controller access via weak password recovery
Published Sep 12, 2022 · Updated Aug 3, 2024
Weak password recovery in Schneider Electric control products allows remote attackers to read and write controller data over Modbus. The published advisory does not disclose which recovery exchange or validation step accepts attacker-controlled input. Network access to the controller is sufficient, and successful exploitation grants unauthorized read-and-write control rather than access to the Windows host.
Summary
What happened
Weak password recovery in Schneider Electric control products allows remote attackers to read and write controller data over Modbus. The published advisory does not disclose which recovery exchange or validation step accepts attacker-controlled input. Network access to the controller is sufficient, and successful exploitation grants unauthorized read-and-write control rather than access to the Windows host.
The record
- CVE
- CVE-2022-37300
- Published
- Sep 12, 2022
- Updated
- Aug 3, 2024
- Vendor
- Distributed Data Systems
- Product
- Modicon M580 CPU
- Classifications
- CWE-640, T1692.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=BMEH <=3.20
- Affected versionversion=BMEP <=3.20
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
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Your stack
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