CVE-2020-28396
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 · uneditedA vulnerability has been identified in SICAM A8000 CP-8000 (All versions < V16), SICAM A8000 CP-8021 (All versions < V16), SICAM A8000 CP-8022 (All versions < V16). A web server misconfiguration of the affected device can cause insecure ciphers usage by a user´s browser. An attacker in a privileged position could decrypt the communication and compromise confidentiality and integrity of the transmitted information.
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 confidenceThe SICAM A8000 CP-8000, CP-8021, and CP-8022 devices have a web server misconfiguration that enables insecure/weak SSL/TLS cipher suites. An attacker with privileged network position (e.g., man-in-the-middle) can exploit these weak ciphers to decrypt encrypted communications, compromising both confidentiality and integrity of data transmitted between users and the device web interface.
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< 16< 16< 16CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/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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Identify device modelAccess the device web interface or management console and verify the model number is CP-8000, CP-8021, or CP-8022. This information is typically displayed on the device overview or status page.Affected if The device is a CP-8000, CP-8021, or CP-8022 model.
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Check firmware versionLocate the firmware version information in the device web interface (usually under System Info, Device Status, or About section) or via the device management interface. Compare the installed version number to the affected range.Affected if The firmware version is less than 16 (for example, V14, V15, or any version number below 16).
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Test for weak SSL/TLS cipher exposurePerform an SSL/TLS scan against the device web server using tools such as sslyze, nmap with ssl-enum-ciphers script, or online SSL testing services. Attempt connections using weak cipher suites such as SSLv3, TLS 1.0, TLS 1.1, or known-weak algorithms like 3DES, RC4, or export-grade ciphers.Affected if The SSL/TLS scan reveals that weak cipher suites (SSLv3, TLS 1.0, TLS 1.1, 3DES, RC4, or export ciphers) are accepted or enabled.
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Verify web server SSL/TLS configurationIf you have administrative access to the device configuration, navigate to the web server or network security settings. Inspect the SSL/TLS protocol and cipher configuration for the presence of weak protocols (SSLv3, TLS 1.0, TLS 1.1) or weak cipher algorithms.Affected if The configuration shows weak protocols or weak ciphers are explicitly enabled in the web server settings.
You are affected if your device is a CP-8000, CP-8021, or CP-8022 with firmware version less than 16, and weak SSL/TLS cipher suites are exposed or enabled on the web server.
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 data16
Update affected devices to firmware V16 or later, which contains the corrected web server configuration with secure cipher settings. If immediate update is not possible, disable weak cipher suites (SSLv3, TLS 1.0, TLS 1.1, and known-weak algorithms) in the web server configuration.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-28396 — 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-2020-28396 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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