CVE-2020-25842
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 · uneditedThe encryption function of NHIServiSignAdapter fail to verify the file path input by users. Remote attacker can access arbitrary files through the flaw without privilege.
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 confidenceNHIServiSignAdapter's encryption function lacks proper input validation on file path parameters, allowing remote attackers to use path traversal sequences (e.g., '../') or absolute paths to access arbitrary files on the system without authentication or elevated privileges.
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= 1.0.20.0218CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Confirm Panorama Nhiservisignadapter is installedLocate the Nhiservisignadapter service or executable on the system using system inventory tools, service listings, or file system searches for 'Nhiservisignadapter' or 'NHI ServiSign Adapter' related filesAffected if The Panorama Nhiservisignadapter software is present on the system
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Identify the installed versionCheck the version of the installed Nhiservisignadapter component by examining the executable properties, service details, or version information embedded in the application filesAffected if The installed version is 1.0.20.0218 (exact match)
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Determine if the encryption function is accessibleInspect the application's configuration or exposed interfaces to verify whether the encryption function (which handles file path parameters) is enabled and accessible to users or external callersAffected if The encryption function is enabled and exposed for use
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Check network exposure of the serviceReview network bindings, firewall rules, or access control lists to determine if the Nhiservisignadapter service is accessible over the network or from untrusted sourcesAffected if The service is network-accessible without proper authentication restrictions
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Audit for path traversal attemptsReview application logs, access logs, or security monitoring tools for any recent requests containing '../' sequences or absolute file paths sent to the encryption functionAffected if Historical or current logs show path traversal patterns targeting the encryption function
The environment is affected if Panorama Nhiservisignadapter version 1.0.20.0218 is installed and its encryption function is accessible, allowing unauthenticated path traversal attacks.
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 dataImplement strict input validation and allowlist-based path checking on file path parameters in the encryption function, using path canonicalization to resolve and verify paths before file operations.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-25842 — 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-2020-25842 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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