CVE-2023-28133
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 · uneditedLocal privilege escalation in Check Point Endpoint Security Client (version E87.30) via crafted OpenSSL configuration file
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 confidenceLocal privilege escalation vulnerability in Check Point Endpoint Security Client version E87.30 allows a local attacker to gain elevated privileges by placing a crafted OpenSSL configuration file in a location where the client processes it, potentially leading to SYSTEM-level 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= e87.30CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 Check Point Endpoint Security Client installationCheck for the presence of Check Point Endpoint Security Client by looking for its installation directory, typically under C:\Program Files\Checkpoint\Endpoint Security\ or C:\Program Files (x86)\Checkpoint\Endpoint Security\, and list the product version information from the installation.Affected if The client software is installed and the version equals exactly E87.30.
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Verify the exact installed versionCheck the product version through Windows registry under HKLM\SOFTWARE\Checkpoint\Endpoint Security\Client\Version or by viewing the version information of the main executable file in the installation directory.Affected if The version displayed is E87.30 exactly.
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Locate OpenSSL configuration files processed by the clientSearch for OpenSSL configuration files (typically named openssl.cnf or .openssl.cnf) within the Check Point Endpoint Security Client installation directory and related data folders such as %PROGRAMDATA%\Checkpoint\Endpoint Security\.Affected if OpenSSL configuration files exist in directories owned or used by the Check Point client.
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Inspect directory permissions for OpenSSL config locationsUse icacls or Windows Explorer security properties to review write permissions on directories where OpenSSL configuration files are stored, particularly within the Check Point installation folder and ProgramData\Checkpoint directories.Affected if Users without administrative privileges can write to directories containing OpenSSL configuration files used by the client.
You are affected if Check Point Endpoint Security Client version E87.30 is installed AND OpenSSL configuration files exist in client-accessible directories with weak permissions allowing unprivileged modification.
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 dataApply the vendor-supplied patch or update to Check Point Endpoint Security Client version E87.30 or later; as a workaround, restrict file system permissions on directories where OpenSSL configuration files are stored to prevent unauthorized modification.
- Consultation4.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-28133 — 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-2023-28133 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
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