CVE-2021-43359
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 · uneditedSunnet eHRD has broken access control vulnerability, which allows a remote attacker to access account management page after being authenticated as a general user, then perform privilege escalation to execute arbitrary code and control the system or interrupt services.
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 confidenceSunnet eHRD contains a broken access control vulnerability where an authenticated general user can access the account management page and perform privilege escalation to achieve arbitrary code execution, enabling full system control or service disruption.
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= 8= 9CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 if Sunnet eHRD is installedCheck your system for the presence of Sunnet eHRD (also known as Sun Ehrd) application. Look for the application in your installed programs list, web server directories, or by searching for files containing 'eHRD' or 'Sunnet' in the application name.Affected if Sunnet eHRD software is present on the system
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Determine the installed versionLocate and inspect the version information for the Sunnet eHRD installation. This is typically found in the application about page, configuration files, or the software manifest. Common locations include the application header, a 'version' or 'about' menu item, or installation metadata files.Affected if The installed version is 8 or 9 (exact match to affected versions)
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Verify account management page access for general usersLog in to the Sunnet eHRD system using a standard non-administrator (general user) account. Attempt to navigate to or access the account management or user administration page directly, without using the normal navigation menu.Affected if A general authenticated user can access the account management page without receiving an authorization error or redirect
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Test for privilege escalation capabilityUsing the general user account, attempt to modify user roles, permissions, or create new administrative accounts through the accessible account management functionality.Affected if A general user can perform actions that modify roles, permissions, or create administrator-level accounts
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Check for arbitrary code execution potentialIf privilege escalation is possible, attempt to use the elevated privileges to access features that allow uploading files, executing system commands, or modifying application code or scripts.Affected if The privilege escalation enables execution of arbitrary code or system commands
Your environment is affected if Sunnet eHRD versions 8 or 9 are installed AND a non-administrator user can access account management functions or escalate privileges without proper authorization checks.
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 role-based access control (RBAC) with proper authorization checks on all sensitive pages, enforce least-privilege principles, and validate user permissions server-side before allowing administrative actions.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-43359 — 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-2021-43359 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data