Unauthenticated file write via web-service path control
Published Nov 17, 2022 · Updated Apr 29, 2025
Path traversal in Siemens Healthineers syngo Dynamics before VA40G HF01 allows remote attackers to write data to server-accessible folders. An application-server web-service operation accepts a caller-controlled file path without enforcing write-access boundaries, so the application-pool account writes attacker-supplied data outside the intended location. No authentication or user interaction is required, but the service must be network-reachable; writes are limited to folders accessible to the website application-pool account.
Summary
What happened
Path traversal in Siemens Healthineers syngo Dynamics before VA40G HF01 allows remote attackers to write data to server-accessible folders. An application-server web-service operation accepts a caller-controlled file path without enforcing write-access boundaries, so the application-pool account writes attacker-supplied data outside the intended location. No authentication or user interaction is required, but the service must be network-reachable; writes are limited to folders accessible to the website application-pool account.
The record
- CVE
- CVE-2022-42891
- Published
- Nov 17, 2022
- Updated
- Apr 29, 2025
- Vendor
- Siemens Healthineers AG
- Product
- syngo Dynamics
- Classifications
- CWE-73, CWE-610, T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 17, 2022CVE publishedPublication date reported by the CVE source.
- Apr 29, 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=All versions < VA40G HF01
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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