Elevated code execution via OpenVPN configuration injection
Published Jul 12, 2022 · Updated Apr 21, 2025
Code injection in Siemens industrial networking devices allows attackers to execute arbitrary code with elevated privileges. The SRCS VPN feature accepts injected code in specific OpenVPN configuration options without adequately controlling executable content. The feature is disabled by default, and exploitation requires high privileges, adjacent-network access, and a crafted configuration.
Summary
What happened
Code injection in Siemens industrial networking devices allows attackers to execute arbitrary code with elevated privileges. The SRCS VPN feature accepts injected code in specific OpenVPN configuration options without adequately controlling executable content. The feature is disabled by default, and exploitation requires high privileges, adjacent-network access, and a crafted configuration.
The record
- CVE
- CVE-2022-34821
- Published
- Jul 12, 2022
- Updated
- Apr 21, 2025
- Vendor
- Siemens
- Product
- SCALANCE WUM763-1 (US)
- Classifications
- CWE-94, T1059
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Jul 12, 2022CVE publishedPublication date reported by the CVE source.
- Apr 21, 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?
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- Affected versionversion=0 <V3.0.0
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.
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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