CVE-2023-34998
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A specially crafted series of network requests can lead to arbitrary authentication. An attacker can sniff network traffic to trigger this vulnerability.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceAn authentication bypass vulnerability exists in the OAS Engine of Open Automation Software OAS Platform v18.00.0072. Attackers can sniff network traffic and send specially crafted series of network requests to bypass authentication mechanisms and gain unauthorized access.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 18.00.0072CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify OAS Platform installationSearch for Open Automation Software OAS Platform installation directories, typically under C:\Program Files\Open Automation Software or C:\OAS, and check for OAS Engine related foldersAffected if OAS Platform software is found on the system
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Determine installed OAS Platform versionLocate version information in the installation directory, typically in a file named version.txt, about.txt, or in the executable properties of the OAS Engine service binaryAffected if The installed version is exactly 18.00.0072
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Verify OAS Engine service is runningCheck Windows Services for OAS Engine service or look for OAS-related processes listening on network ports, commonly ports 58727 or 58728Affected if OAS Engine service is active and exposing network interfaces
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Assess network exposure of OAS EngineUse netstat or similar network tools to identify which network interfaces the OAS Engine is bound to, noting whether it listens on all interfaces (0.0.0.0) or is accessible beyond local network segmentsAffected if OAS Engine is bound to accessible network interfaces and accepting remote connections
You are affected if OAS Platform version 18.00.0072 is installed and the OAS Engine service is running and network-accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the vendor patch for OAS Platform v18.00.0072. In the interim, implement network segmentation, monitor for anomalous authentication patterns, and restrict network access to the OAS Engine.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,072.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-34998 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-34998 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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