Cyber Vision CenterApplication · Cisco
CVE-2020-3448
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 in an access control mechanism of Cisco Cyber Vision Center Software could allow an unauthenticated, remote attacker to bypass authentication and access internal services that are running on an affected device. The vulnerability is due to insufficient enforcement of access control in the software. An attacker could exploit this vulnerability by directly accessing the internal services of an affected device. A successful exploit could allow an attacker to impact monitoring of sensors that are managed by the software.
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 confidenceAuthentication bypass vulnerability in Cisco Cyber Vision Center Software where insufficient enforcement of access controls allows unauthenticated remote attackers to directly access internal services running on affected devices, potentially impacting sensor monitoring functionality.
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
Cyber Vision CenterApplication
< 3.0.4CVSS 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
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/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 installed Cyber Vision Center versionLog into the Cyber Vision Center admin interface and navigate to About or System Information page to view the software version. Alternatively, use command 'show version' via console or SSH if available.Affected if The displayed version number is lower than 3.0.4 (for example, 3.0.3, 3.0.2, etc.)
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Determine network exposure of internal servicesReview firewall rules, networkACLs, or security group settings to identify which ports and services on the Center are accessible from external or untrusted network segments. Common internal service ports may include 5000, 8080, or custom sensor ports.Affected if Internal service ports are reachable from untrusted network addresses without authentication requirements
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Verify authentication enforcement on API endpointsAttempt to access internal service API endpoints (such as /api/v1/sensors or similar internal paths) directly without providing credentials. Use a tool like curl: curl -k http://<center-ip>:<port>/api/endpointAffected if API calls return valid data or successful responses without requiring authentication tokens or login credentials
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Check for unauthenticated access to sensor dataAccess sensor monitoring URLs or endpoints directly without logging into the Center interface. Observe whether sensor status, health, or configuration data is returned without redirecting to a login page.Affected if Sensor monitoring data is displayed without being prompted for authentication
You are affected if Cyber Vision Center version is below 3.0.4 AND internal services are accessible from untrusted network locations without requiring authentication.
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 data3.0.4
Apply vendor-provided security updates from Cisco when available; until then, restrict network exposure of internal services and implement additional authentication controls at network perimeter.
Fix this in Cyber Vision Center
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-3448 — 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-2020-3448 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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