ExpresswayApplication · Cisco
CVE-2024-20252
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 Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to conduct cross-site request forgery (CSRF) attacks that perform arbitrary actions on an affected device. Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. For more information about these vulnerabilities, see the Details ["#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 confidenceCSRF vulnerability in Cisco Expressway Series (Expressway-C/Expressway-E) and Cisco TelePresence VCS allows unauthenticated remote attackers to trick authenticated administrators into executing arbitrary actions on the device through maliciously crafted web requests.
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
ExpresswayApplication
<= 15.0CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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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Identify the installed productAccess the CLI or web interface and locate the system information. On Expressway, use the CLI command 'xcommand status' or check the web interface Dashboard for product name (Expressway-C, Expressway-E, or TelePresence VCS).Affected if The product is Cisco Expressway Series or Cisco TelePresence VCS.
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Check the installed software versionIn the web interface, go to Maintenance > System > Version or use CLI command 'xstatus systemunit' to view the software version. Note the exact version number displayed.Affected if The version is 15.0 or any version lower than 15.0.
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Verify the web management interface is activeIn the web interface, go to Configuration > System Management > Security Settings and confirm 'Web UI' or 'HTTP/HTTPS access' is enabled. From CLI, check if the web server is listening on ports 80/443 using 'xstatus webserver'.Affected if The web management interface (HTTP or HTTPS) is enabled and accessible.
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Confirm administrator session is in useReview active administrator sessions via the web interface (Status > Unified Communications > Active Sessions) or CLI command 'xstatus adminSessions' to verify administrators log in via the web interface.Affected if Administrators access the device through the web interface.
You are affected if you run Cisco Expressway or TelePresence VCS version 15.0 or lower with the web management interface enabled and administrators using web-based access.
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 security patches when released; consider disabling the web management interface if unused, or implement additional CSRF protection measures at the network level.
Fix this in Expressway
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-2024-20252 — 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-2024-20252 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
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