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Unified Communications ManagerApplication · Cisco

CVE-2019-15963

MEDIUM · 6.5 CVSS v3.1 Published 2020-09-23
Fix available
A fix is available. Upgrade to after 12.5 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

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 could allow an authenticated, remote attacker to view sensitive information in the web-based management interface of the affected software. The vulnerability is due to insufficient protection of user-supplied input by the web-based management interface of the affected service. An attacker could exploit this vulnerability by accessing the interface and viewing restricted portions of the software configuration. A successful exploit could allow the attacker to gain access to sensitive information or conduct further attacks.

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 confidence

This is an information disclosure vulnerability in Cisco Unified Communications Manager's web-based management interface. An authenticated remote attacker can view sensitive configuration data that should be restricted. The vulnerability stems from insufficient protection of user-supplied input, likely allowing unauthorized access to restricted pages or parameters through the web interface.

MitigationApply Cisco's official patch for CVE-2019-15963 when available. Until then, restrict network access to the web-based management interface using network segmentation and access controls, and limit the number of users with administrative credentials.

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, <= 10.5\(2.10000.5\)>= 11.5, <= 11.5\(1.10000.6\)>= 12.0, <= 12.0\(1.10000.10\)>= 12.5, <= 12.5\(1.10000.22\)

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 server via CLI and run the command 'show version' or access the web interface and navigate to Help > About to view the version information.
    Affected if The displayed version falls within these ranges: 10.5 through 10.5(2.10000.5), 11.5 through 11.5(1.10000.6), 12.0 through 12.0(1.10000.10), or 12.5 through 12.5(1.10000.22).
  2. Confirm the web-based management interface is enabled and accessible
    Attempt to access the Cisco Unified Communications Manager web interface via HTTPS at the primary node's hostname or IP address on port 443 (for example, https://<hostname>/ccmadmin or https://<IP>/ccmadmin).
    Affected if The web management interface responds and is reachable from the network segment being tested.
  3. Verify authentication is required for the web interface
    Attempt to access the web management pages without providing credentials. Observe whether the system redirects to a login page or denies access.
    Affected if The interface requires authentication but the vulnerability is exploited after obtaining any valid administrative credentials.
  4. Review administrative user accounts with web interface access
    Use the Cisco Unified Communications Operating System Administration console or CLI command 'show cucm list user' to enumerate accounts that have administrative privileges for the web interface.
    Affected if Any administrative user accounts exist that could be used to authenticate to the vulnerable web interface.

You are affected if your installed Cisco Unified Communications Manager version falls within the listed vulnerable ranges AND the web-based management interface is network-accessible to potential attackers.

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 a release after 12.5
Interim mitigation

Apply Cisco's official patch for CVE-2019-15963 when available. Until then, restrict network access to the web-based management interface using network segmentation and access controls, and limit the number of users with administrative credentials.

Fix this in Unified Communications Manager Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.

Scan for this in your stack

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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-2019-15963 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