CVE-2018-18603
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 · unedited360 Total Security 3.5.0.1033 allows a Sandbox Escape via an "import os" statement, followed by os.system("CMD") or os.system("PowerShell"), within a .py file. NOTE: the vendor's position is that this cannot be categorized as a vulnerability, although it is a security-related issue
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 confidence360 Total Security version 3.5.0.1033 contains a sandbox escape vulnerability where Python scripts executed within the sandbox can import the os module and use os.system() to execute arbitrary system commands (CMD or PowerShell), effectively bypassing the sandbox isolation and gaining host system 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= 3.5.0.1033CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/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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Check installed 360 Total Security versionOpen 360 Total Security, navigate to the main menu or About section, or right-click the system tray icon and select About to view the exact version numberAffected if The displayed version is exactly 3.5.0.1033
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Identify if sandbox feature is presentLook for sandbox-related options in the 360 Total Security interface (usually under Tools, Sandbox, or similar menu), or check for sandbox-related processes or services runningAffected if The sandbox module or feature is installed and available in this version
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Verify Python script execution context in sandboxIf the sandbox is available, attempt to run a simple Python script within it that imports the os module and calls os.system('echo test'), or inspect sandbox documentation/settings for Python execution rulesAffected if The os module can be imported and os.system() executes commands outside the sandbox (host system execution)
You are affected if 360 Total Security version 3.5.0.1033 is installed and the sandbox feature allows Python scripts to import the os module and execute system commands that escape sandbox isolation.
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 dataThe sandbox should be hardened to either block or properly sandbox Python's os module execution capabilities (os.system, os.popen, subprocess module) within the sandboxed environment, or restrict script execution privileges to prevent host system command execution.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-18603 — 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-2018-18603 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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