Identity Services EngineApplication · Cisco
CVE-2023-20163
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 · uneditedMultiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow an authenticated attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit these vulnerabilities, an attacker must have valid credentials on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
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 confidenceCommand injection vulnerabilities in Cisco Identity Services Engine (ISE) allow an authenticated attacker to execute arbitrary OS commands and escalate privileges to root on the underlying operating system.
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
Identity Services EngineApplication
<= 2.7= 3.0.0= 3.1= 3.2CVSS 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 ISE versionLog into the ISE admin UI and navigate to Administration > System > Licensing, or run 'show version' command via CLI. Alternatively, check the bundled release notes file in /opt/ise/ on the appliance.Affected if The installed version is 2.7 or earlier, or exactly 3.0.0, 3.1, or 3.2.
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Verify admin access controlsReview user accounts in Administration > Identity Management > Identities > Users. Check for any unauthorized administrative accounts or accounts with elevated privileges that were not created by authorized personnel.Affected if Unexpected or unauthorized admin-level accounts exist in the ISE user database.
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Inspect system logs for suspicious activityReview ISE operational logs in Monitoring > Reports > Reports > Operational. Look for entries containing unusual command execution patterns, especially from administrative sessions.Affected if Logs show unexpected CLI commands or API calls originating from admin accounts, particularly during periods you do not recognize.
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Check for unexpected network listeners or outbound connectionsFrom the ISE CLI, run 'show ports' or 'show connections' to list active network connections. Compare against known legitimate ISE services and administrative source IPs.Affected if Unexpected listening ports or outbound connections to unknown external hosts are present.
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Review privilege escalation indicatorsExamine system audit logs for commands executed as root or switches from standard user context to root context that were not performed by known administrators.Affected if Evidence exists of commands executed as root by accounts that should not have had root-level access.
The environment is affected if the installed Cisco ISE version falls within the vulnerable ranges (2.7 and below, or exactly 3.0.0, 3.1, or 3.2) and the admin interface is accessible to unauthorized or compromised administrator credentials.
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 Cisco's published patch for ISE; limit administrative access to trusted personnel only and implement monitoring for privilege escalation indicators.
Fix this in Identity Services Engine
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-20163 — 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-2023-20163 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