CVE-2023-30690
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 · uneditedImproper input validation vulnerability in Duo prior to SMR Oct-2023 Release 1 allows local attackers to launch privileged activities.
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 confidenceThis is an improper input validation vulnerability in Cisco Duo (a multi-factor authentication solution) that affects versions prior to the October 2023 SMR release. The flaw allows local attackers to bypass normal authorization controls and launch privileged activities, likely achieving code execution with elevated system privileges through malformed input.
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= 11.0= 12.0= 13.0CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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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Check Android version on Samsung deviceGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' in ADB shellAffected if The Android version is 11.0, 12.0, or 13.0 (the specific versions listed as affected)
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Verify Duo application is installedCheck if the Cisco Duo app is present in Settings > Apps, or run 'pm list packages | grep duo' in ADB shellAffected if The Duo application is installed on an affected Android version (11.0-13.0)
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Determine installed Duo SMR versionOpen Duo app > Settings > About, or check app version in Settings > Apps > Duo > Version info. Compare against the October 2023 SMR releaseAffected if Duo version is earlier than the Oct-2023 SMR release (patched version)
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Check for local authorization bypass indicatorsReview system logs (logcat) for unexpected privileged operations or authorization bypass attempts from local processesAffected if Unusual privileged activities appear in logs originating from Duo components without proper authorization checks
A Samsung Android device running Duo is affected if it operates on Android 11.0, 12.0, or 13.0 and the Duo application version predates the October 2023 Security Maintenance Release.
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 · scopedApply the vendor patch by updating Duo to SMR Oct-2023 Release 1 or later. For organizations unable to patch immediately, restrict local access to systems running Duo software and monitor for suspicious process activity.
SMR Oct-2023 Release 1 for Samsung Duo
- Open the Samsung Duo app on your Samsung Android device
- Navigate to the app settings or check for updates in the Galaxy Store
- Update Samsung Duo to the latest available version from Galaxy Store or Google Play Store
- Verify that your device has the October 2023 security patch (SMR Oct-2023 Release 1) installed by going to Settings > About Phone > Software Information > Security Patch Level
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-30690 — 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-2023-30690 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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