Local file tampering and disclosure via shared directory
Published Jun 4, 2024 · Updated Aug 2, 2024
Improper working-directory permissions in CODESYS products before 3.5.20.10 allow local users to read or modify files and interrupt services. Affected executables place their working directories under %ProgramData%\CODESYS by default, where access controls expose files across user and system security contexts. Exploitation requires a low-privilege local account; for Development System, only the simulation runtime is affected, and access is limited to working-directory files.
Summary
What happened
Improper working-directory permissions in CODESYS products before 3.5.20.10 allow local users to read or modify files and interrupt services. Affected executables place their working directories under %ProgramData%\CODESYS by default, where access controls expose files across user and system security contexts. Exploitation requires a low-privilege local account; for Development System, only the simulation runtime is affected, and access is limited to working-directory files.
The record
- CVE
- CVE-2023-5751
- Published
- Jun 4, 2024
- Updated
- Aug 2, 2024
- Vendor
- CODESYS GmbH
- Product
- CODESYS Control Win SL
- Classifications
- CWE-668, T1005, T1565.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 4, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=0 <3.5.20.10
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
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Technologies
Your stack
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Your stack
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