CVE-2005-4093
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 · uneditedCheck Point VPN-1 SecureClient NG with Application Intelligence R56, NG FP1, 4.0, and 4.1 allows remote attackers to bypass security policies by modifying the local copy of the local.scv policy file after it has been downloaded from the VPN Endpoint.
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 confidenceCheck Point VPN-1 SecureClient NG (versions R56, NG FP1, 4.0, 4.1) allows remote attackers to bypass security policies by modifying the local copy of the local.scv policy file after it has been downloaded from the VPN endpoint. This local file modification vulnerability enables attackers to alter security policy settings locally, circumventing the intended VPN security controls.
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 versions= r56= 4.0= 4.1CVSS 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
- Authentication
- Single
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:S/C:P/I:P/A:P
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 installed VPN-1 SecureClient versionCheck the installed version of Check Point VPN-1 SecureClient through the application or system inventory (commonly via Add/Remove Programs on Windows, or rpm/dpkg queries)Affected if The installed version matches 4.0, 4.1, R56, or NG FP1 (or any NG version prior to FP2)
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Locate the local.scv policy fileSearch for the file named local.scv in the VPN-1 SecureClient installation directory or user profile directories where policy files are storedAffected if The local.scv file exists on the system (the vulnerability requires this file to be present)
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Verify file permissions on local.scvInspect the file permissions (on Windows, right-click properties; on Unix-like systems, use ls -l) to determine if standard users can write to or modify the local.scv fileAffected if The file has weak permissions allowing modification by non-privileged users, indicating the integrity protection is missing
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Check for recent unauthorized modificationsCompare the local.scv file hash or modification timestamp against known-good values or VPN server logs if availableAffected if The file has been modified after the last legitimate policy download from the VPN endpoint
A user is affected if they are running VPN-1 SecureClient versions 4.0, 4.1, R56, or NG FP1 (or any NG version prior to FP2) and the local.scv policy file exists with modifiable permissions.
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 to a supported version of Check Point VPN-1 SecureClient that includes proper integrity protection for local policy files, or implement additional controls to prevent unauthorized modification of local.scv files.
- 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-2005-4093 — 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-2005-4093 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
- No spam, self-promotion, credentials, or personal data