Arbitrary file creation via unvalidated opcua filename
Published Dec 1, 2022 · Updated Apr 16, 2025
Path traversal in Delta Electronics DIALink before 1.5.0.0 Beta 4 allows remote attackers to create arbitrary files through its web service. The TCP port 5000 opcua endpoint passes an insufficiently validated filename parameter into file operations, allowing paths outside the intended directory. Authentication is nominally required but can be bypassed, and created files run only if another execution path loads them in the web-service context.
Summary
What happened
Path traversal in Delta Electronics DIALink before 1.5.0.0 Beta 4 allows remote attackers to create arbitrary files through its web service. The TCP port 5000 opcua endpoint passes an insufficiently validated filename parameter into file operations, allowing paths outside the intended directory. Authentication is nominally required but can be bypassed, and created files run only if another execution path loads them in the web-service context.
The record
- CVE
- CVE-2022-2969
- Published
- Dec 1, 2022
- Updated
- Apr 16, 2025
- Vendor
- Delta Electronics, Inc.
- Product
- DIALink
- Classifications
- CWE-22, T1105, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 1, 2022CVE publishedPublication date reported by the CVE source.
- Apr 16, 2025Record 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 <1.5.0.0 Beta 4
What conditions does exploitation require?
What is affected?
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.
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Technologies
Your stack
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Your stack
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