CVE-2024-45316
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 Improper link resolution before file access ('Link Following') vulnerability in SonicWall Connect Tunnel (version 12.4.3.271 and earlier of Windows client) allows users with standard privileges to delete arbitrary folders and files, potentially leading to local privilege escalation attack.
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 · high confidenceThis is a link following (symlink attack) vulnerability in SonicWall Connect Tunnel Windows client versions 12.4.3.271 and earlier. The application improperly resolves file paths before accessing them, allowing standard (non-privileged) users to manipulate symlinks to delete arbitrary folders and files outside the application's intended scope, enabling local privilege escalation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/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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Verify SonicWall Connect Tunnel installationLook for the application in the Windows registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall or check for the directory at %ProgramFiles%\SonicWall\Connect Tunnel or %ProgramFiles(x86)%\SonicWall\Connect TunnelAffected if The application is found installed on the system
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Determine installed versionOpen the Connect Tunnel executable (usually named ConnectTunnel.exe) in the installation directory, right-click and select Properties, then check the Details tab for the File Version. Alternatively, query the registry key for the DisplayVersion value in the uninstall entry.Affected if The version number is 12.4.3.271 or lower (e.g., 12.4.3.xxx, 12.4.2.xxx, etc.)
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Monitor for symlink manipulation activityUse Windows Sysinternals Process Monitor (procmon.exe) to filter on the ConnectTunnel.exe process and observe file system activity. Look for CreateFile operations with symbolic link intentions (FILE_FLAG_OPEN_REPARSE_POINT) targeting directories outside the application scope, especially in user-writable locations like temp folders or appdata.Affected if Symlink creation or file operations are observed targeting arbitrary system paths outside the application's intended working directory
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Inspect for file deletion in sensitive locationsReview Windows Event Logs (Security and System) for unexpected file or folder deletion events, particularly in system32, program files, or other protected directories that coincide with times when Connect Tunnel was running. Also manually check if any critical system files or security-related folders have been recently modified or removed.Affected if Files or folders have been deleted from locations outside the application's intended scope, especially protected system directories
A system is affected if SonicWall Connect Tunnel client version 12.4.3.271 or earlier is installed and the application has write access to user-controllable directories where symlink attacks could be performed.
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 dataUpgrade SonicWall Connect Tunnel client to a version newer than 12.4.3.271. Until patched, monitor file system activity and restrict standard user permissions on systems with this software installed.
- Consultation3.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-45316 — 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-2024-45316 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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