Local privilege escalation via writable script directories
Published Jul 28, 2023 · Updated Oct 21, 2024
Improper permissions in CODESYS Development System before 3.5.17.0 and Scripting before 4.1.0.0 allow local users to execute scripts. Affected releases enumerate scripts from two shared %PROGRAMDATA%\CODESYS subfolders that every low-privileged user can write, then offer them to a legitimate user. Exploitation requires local low-privileged code execution and a legitimate user to select the planted script, which runs as that user's CODESYS process and reaches Administrator context when the victim is an administrator.
Summary
What happened
Improper permissions in CODESYS Development System before 3.5.17.0 and Scripting before 4.1.0.0 allow local users to execute scripts. Affected releases enumerate scripts from two shared %PROGRAMDATA%\CODESYS subfolders that every low-privileged user can write, then offer them to a legitimate user. Exploitation requires local low-privileged code execution and a legitimate user to select the planted script, which runs as that user's CODESYS process and reaches Administrator context when the victim is an administrator.
The record
- CVE
- CVE-2023-3670
- Published
- Jul 28, 2023
- Updated
- Oct 21, 2024
- Vendor
- CODESYS GmbH
- Product
- CODESYS Development System
- Classifications
- CWE-668, T1204.002
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 28, 2023CVE publishedPublication date reported by the CVE source.
- Oct 21, 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=3.5.9.0 <3.5.17.0
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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