Secure Network AnalyticsApplication · Cisco
CVE-2023-20103
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 Cisco Secure Network Analytics could allow an authenticated, remote attacker to execute arbitrary code as a root user on an affected device. This vulnerability is due to insufficient validation of user input to the web interface. An attacker could exploit this vulnerability by uploading a crafted file to an affected device. A successful exploit could allow the attacker to execute code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.
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 confidenceInsufficient input validation in the web interface of Cisco Secure Network Analytics allows an authenticated remote attacker with Administrator credentials to upload a crafted file that bypasses validation checks, enabling arbitrary code execution with root privileges on the affected device.
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
Secure Network AnalyticsApplication
< 7.4.2CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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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Determine Cisco Secure Network Analytics versionAccess the web interface and navigate to the About or System Information page, or use CLI command 'show version' if available, to retrieve the installed software versionAffected if Installed version is lower than 7.4.2
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Verify web interface accessibilityConfirm the Cisco Secure Network Analytics web interface (typically HTTPS on port 443) is exposed to network accessAffected if Web interface is externally accessible or accessible from untrusted networks
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Check for Administrator accountsReview user management settings in the web interface under Administration or Users section to enumerate Administrator-level accountsAffected if Any Administrator accounts exist and are active on the system
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Inspect for unauthorized file uploadsCheck /var/log or installation directories for unexpected files, especially in upload or temporary directories; review web server logs for suspicious POST requests to file upload endpointsAffected if Unusual files found in upload directories or anomalous upload requests in logs
Environment is affected if Cisco Secure Network Analytics version is below 7.4.2 and the web interface with Administrator accounts is accessible to the attacker
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.
dbcve · scoped7.4.2
Immediately revoke and rotate all Administrator credentials on affected devices and apply the vendor patch when released. Restrict administrative access to the web interface to trusted networks or VPN-only access until the patch is applied.
7.4.2 or later
- Log in to the Secure Network Analytics administrator interface
- Navigate to the System Settings or Administration section
- Verify current version is below 7.4.2
- Back up the current configuration following Cisco backup procedures
- Upgrade to version 7.4.2 or later
- Verify the upgrade was successful and the version is now 7.4.2 or higher
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Secure Network Analytics
Scoped from the published advisory
- Consultation4.0 h
- Implementation6.0 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 $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-20103 — 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-2023-20103 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
- No spam, self-promotion, credentials, or personal data