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Webex Training CenterApplication · Cisco

CVE-2013-6972

MEDIUM · 5.0 CVSS v2.0 Published 2013-12-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
Remotely reachable No privileges 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
Cisco WebEx Training Center allows remote attackers to discover session numbers, and bypass host approval for audio-conference attendance, by reading HTML source code, aka Bug ID CSCul57126.

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

The vulnerability in Cisco WebEx Training Center exposes session numbers in plain text within HTML source code, allowing remote attackers to enumerate valid session identifiers. Additionally, the application fails to properly validate host approval status for audio-conference attendees, enabling unauthorized access to audio conferences without host consent.

MitigationUsers of affected WebEx deployments should ensure they are running patched versions provided by Cisco. Organizations should review session access controls and implement additional authentication layers for sensitive meetings while awaiting vendor patches.

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
Webex Training CenterApplication
Affected:all versions

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
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/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. Confirm Cisco WebEx Training Center is deployed
    Identify whether your environment hosts or uses Cisco WebEx Training Center for online meetings and training sessions. Check with your IT administration or look for WebEx-related URLs (typically containing 'webex.com' or 'trainingcenter' in the address) in your browser history or proxy logs.
    Affected if Your organization uses Cisco WebEx Training Center for meetings or training sessions.
  2. Inspect HTML source for exposed session identifiers
    When attending or hosting a WebEx Training Center session, view the page source (right-click > View Page Source in browsers). Search for session numbers, meeting identifiers, or numeric patterns that could serve as session tokens. Also capture and inspect HTTP responses using browser developer tools or a network proxy.
    Affected if Session numbers, meeting IDs, or numeric identifiers are visible in plain text within the HTML source code or network responses.
  3. Test audio conference access without host approval
    Attempt to join an audio conference in WebEx Training Center as an attendee without being granted host approval. Observe whether the system allows access to the audio conference without explicit host authorization or approval status.
    Affected if Attendees can join audio conferences without receiving or having host approval, gaining unauthorized audio access.
  4. Verify session enumeration vulnerability
    Compare session identifiers across multiple meeting invites or URLs. Attempt to access different session numbers to determine if valid sessions can be predicted or enumerated through incremental session IDs.
    Affected if Session identifiers follow a predictable or sequential pattern that allows enumeration of valid session numbers.

You are affected if your deployment of Cisco WebEx Training Center exposes session identifiers in plain text within HTML or allows unauthorized audio conference access without host approval.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Users of affected WebEx deployments should ensure they are running patched versions provided by Cisco. Organizations should review session access controls and implement additional authentication layers for sensitive meetings while awaiting vendor patches.

Fix this in Webex Training Center Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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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-2013-6972 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