CVE-2022-46304
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 · uneditedChangingTec ServiSign component has insufficient filtering for special characters in the connection response parameter. An unauthenticated remote attacker can host a malicious website for the component user to access, which triggers command injection and allows the attacker to execute arbitrary system command to perform arbitrary system operation or disrupt service.
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 confidenceChangingTec ServiSign component has a command injection vulnerability due to insufficient filtering of special characters in the connection response parameter. An unauthenticated remote attacker can host a malicious website that, when accessed by a ServiSign user, triggers the injection of arbitrary system commands through the vulnerable parameter, leading to full system command execution.
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 dataall versionsCVSS 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
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 if Changingtec ServiSign is installedCheck system for ServiSign component installation. Look for ServiSign directories, services, or installed software packages on the host.Affected if ServiSign component is present on the system
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Locate ServiSign service or web interfaceIdentify running services or web endpoints associated with ServiSign. Check for servsign.exe, servisign service, or web service ports.Affected if ServiSign service is running and accessible
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Verify exposure of the connection response parameterIdentify the web interface or API endpoint that handles the connection response parameter. This parameter is the input vector for command injection.Affected if The connection response parameter is accessible via web interface or API without authentication
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Assess network accessibilityCheck if the ServiSign service is reachable from untrusted networks or if users can access external websites while authenticated to ServiSign.Affected if ServiSign users can access untrusted websites or the service is exposed to the internet without proper network controls
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Check for security controls on the parameter inputReview how the connection response parameter processes input - look for filtering of special characters (such as shell metacharacters) in the parameter handling code or logs.Affected if The connection response parameter does not filter or sanitize special characters
A user is affected if the Changingtec ServiSign component is installed and the connection response parameter is accessible, regardless of version since all versions are vulnerable.
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 vendor-provided patches or updates to the ServiSign component; if no patch is available, consider disabling or removing the component until a fix is released, and implement network-level controls to block users from accessing untrusted websites.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-46304 — 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-2022-46304 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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