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Unified Communications ManagerApplication · Cisco

CVE-2020-3282

MEDIUM · 6.1 CVSS v3.1 Published 2020-07-02
Fix available
A fix is available. Upgrade to 10.5 / 11.5 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 · unedited
A vulnerability in the web-based management interface of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.

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 confidence

Cross-site scripting (XSS) vulnerability in Cisco Unified Communications Manager, Session Management Edition, IM & Presence Service, and Cisco Unity Connection web-based management interfaces due to insufficient validation of user-supplied input. An attacker exploits this by tricking users into clicking crafted malicious links, enabling execution of arbitrary script code in the browser context or theft of sensitive browser-based information.

MitigationApply the Cisco security patch when available. Until then, restrict access to the management interface to trusted networks only and educate users about avoiding suspicious links.

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
Affected:>= 10.5\(2\), < 10.5\(2\)su10>= 11.5\(1\), < 11.5\(1\)su8= 12.0\(1\)= 12.5\(1\)
Unified Communications Manager Im And Presence ServiceApplication
Affected:>= 10.5\(2\), < 10.5\(2\)su10>= 11.5\(1\), < 11.5\(1\)su8= 12.0\(1\)= 12.5\(1\)
Unity ConnectionApplication
Affected:>= 10.5\(2\), < 10.5\(2\)su10>= 11.5\(1\), < 11.5\(1\)su8= 12.0\(1\)= 12.5\(1\)

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:3.1/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the installed Cisco Unified Communications Manager version
    Log into the Cisco Unified Communications Administration web interface and navigate to About > Version, or access the CLI and run 'show version'
    Affected if The version is 10.5(2) through 10.5(2)su9, 11.5(1) through 11.5(1)su7, 12.0(1), or 12.5(1)
  2. Identify the installed Cisco Unity Connection version
    Log into Cisco Unity Connection Administration and navigate to System > Settings > Product Upgrade, or access the CLI and run 'show version'
    Affected if The version is 10.5(2) through 10.5(2)su9, 11.5(1) through 11.5(1)su7, 12.0(1), or 12.5(1)
  3. Identify the installed IM & Presence Service version
    Log into Cisco IM & Presence Administration and navigate to About > Version, or check via Cisco Unified Communications Manager CLI
    Affected if The version is 10.5(2) through 10.5(2)su9, 11.5(1) through 11.5(1)su7, 12.0(1), or 12.5(1)
  4. Verify the web-based management interface is enabled and accessible
    Attempt to reach the Cisco web management interface via HTTPS on the default ports (typically 8443 or 443), or check service status via CLI command 'show web security'
    Affected if The web-based management interface is enabled and reachable
  5. Assess network exposure of the management interface
    Review firewall rules, access control lists, or network segmentation to determine if the management web interface is exposed to untrusted networks or users
    Affected if The management interface is accessible from networks other than trusted administrative subnets

You are affected if any of the installed products (CUCM, IM & Presence, or Unity Connection) match the vulnerable version ranges AND the web-based management interface is accessible to users who could be tricked into clicking malicious links.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 10.5 / 11.5 or later
Fixed in 10.511.5
Interim mitigation

Apply the Cisco security patch when available. Until then, restrict access to the management interface to trusted networks only and educate users about avoiding suspicious links.

Fix this in Unified Communications Manager Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,620
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,592.

Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-3282 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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