Unified Communications ManagerApplication · Cisco
CVE-2017-3798
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 cross-site scripting (XSS) filter bypass vulnerability in the web-based management interface of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to mount XSS attacks against a user of an affected device. More Information: CSCvb97237. Known Affected Releases: 11.0(1.10000.10) 11.5(1.10000.6). Known Fixed Releases: 11.5(1.12029.1) 11.5(1.12900.11) 12.0(0.98000.369) 12.0(0.98000.370) 12.0(0.98000.398) 12.0(0.98000.457).
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 · high confidenceCross-site scripting (XSS) filter bypass vulnerability in the web-based management interface of Cisco Unified Communications Manager. An unauthenticated, remote attacker can inject malicious scripts that execute in the context of a user's session when they access the management interface.
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
Unified Communications ManagerApplication
= 11.5\(1.12000.1\)CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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 the installed Cisco Unified Communications Manager versionAccess the Cisco Unified Communications Manager Administration interface and navigate to Help > About, or use the CLI command 'show version' to retrieve the exact version numberAffected if The installed version is exactly 11.5(1.12000.1)
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Verify the web-based management interface is accessibleConfirm that the Cisco Unified Communications Manager Administration web interface (typically on port 8443 or 443) is reachable and operationalAffected if The management interface is exposed and accessible to network users
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Review web server logs for XSS injection attemptsExamine the Cisco Unified Communications Manager web logs (located in /var/log/httpd/ or via the Real-Time Monitoring Tool) for suspicious request patterns containing script tags, javascript:, or other XSS vectors in URL parametersAffected if Log entries show attempted XSS injections targeting the management interface
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Check for unexpected administrative sessions or accountsReview the Cisco Unified Communications Manager user list and active sessions through the CCMUser or OS Administration interfaces for unfamiliar administrative accounts or sessionsAffected if Unknown administrative accounts or unexpected sessions are present
The environment is affected only if Cisco Unified Communications Manager version 11.5(1.12000.1) is installed and the web-based management interface is accessible.
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 dataUpgrade Cisco Unified Communications Manager to one of the fixed releases: 11.5(1.12029.1), 11.5(1.12900.11), 12.0(0.98000.369), 12.0(0.98000.370), 12.0(0.98000.398), or 12.0(0.98000.457).
Fix this in Unified Communications Manager
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-3798 — 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-2017-3798 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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