Traffic ControlApplication · Apache

CVE-2019-12405

CRITICAL · 9.8 CVSS v3.1 Published 2019-09-09
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
Improper authentication is possible in Apache Traffic Control versions 3.0.0 and 3.0.1 if LDAP is enabled for login in the Traffic Ops API component. Given a username for a user that can be authenticated via LDAP, it is possible to improperly authenticate as that user without that user's correct password.

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

Apache Traffic Control versions 3.0.0 and 3.0.1 contain an authentication bypass vulnerability in the Traffic Ops API component when LDAP is enabled. An attacker can authenticate as any LDAP-authenticated user by providing only the username without the correct password, effectively bypassing the password verification step entirely.

MitigationUpgrade Apache Traffic Control to version 3.0.2 or later which contains the fix for this improper authentication vulnerability. If immediate upgrading is not possible, consider temporarily disabling LDAP authentication and using alternative authentication mechanisms until the upgrade can be completed.

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
Traffic ControlApplication
Affected:= 3.0.0= 3.0.1

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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 checks

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

  1. Identify the installed Apache Traffic Control version
    Query the Traffic Ops API endpoint /api/1.3/about or check the traffic_ops_golang service version (e.g., via 'traffic_ops_golang -v' or RPM query)
    Affected if The version is 3.0.0 or 3.0.1 specifically
  2. Determine if LDAP authentication is enabled in Traffic Ops
    Inspect the Traffic Ops configuration file (typically traffic_ops_golang.conf) or the Traffic Ops database for LDAP configuration parameters (e.g., 'ldap.conf', 'ldap.enabled', or similar)
    Affected if LDAP authentication is configured and active for Traffic Ops login
  3. Confirm the vulnerability trigger condition
    Verify that the Traffic Ops API is accessible and accepting LDAP-authenticated requests
    Affected if Both conditions from step 1 and step 2 are true (version 3.0.0/3.0.1 AND LDAP enabled)

You are affected if your Apache Traffic Control version is exactly 3.0.0 or 3.0.1 AND the Traffic Ops component has LDAP authentication enabled.

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

Upgrade Apache Traffic Control to version 3.0.2 or later which contains the fix for this improper authentication vulnerability. If immediate upgrading is not possible, consider temporarily disabling LDAP authentication and using alternative authentication mechanisms until the upgrade can be completed.

Fix this in Traffic Control Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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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-2019-12405 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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