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CVE Record

CVE-2018-19466: A vulnerability was found in Portainer before 1.20.0.

A vulnerability was found in Portainer before 1.20.0. Portainer stores LDAP credentials, corresponding to a master password, in cleartext and allows their retrieval via API calls.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Portainer before 1.20.0 could store LDAP credentials in cleartext and expose them through API calls. For an organization using Portainer with LDAP, this turns an application flaw into a credential exposure risk that may affect identity infrastructure, not just Portainer itself.

Executive priority

Treat this as a priority fix where Portainer manages production environments or integrates with corporate LDAP. The main business risk is credential disclosure that could broaden access beyond Portainer.

Technical view

The CVE record describes cleartext storage of LDAP credentials tied to a master password, with API retrieval possible in Portainer versions before 1.20.0. The bundle does not include CVSS, CWE, authentication requirements, or precise vulnerable API details.

Likely exposure

Most relevant exposure is Portainer deployments before 1.20.0 that configured LDAP authentication or stored LDAP bind credentials. Internet-exposed or broadly accessible Portainer APIs increase concern, but the source bundle does not prove unauthenticated access.

Exploitation context

CISA KEV status is false in the supplied bundle, and no cited source states active exploitation. A public GitHub reference exists, but the bundle does not provide enough detail to claim exploitation in the wild.

Researcher notes

Evidence is limited: the CVE text names Portainer before 1.20.0, cleartext LDAP credential storage, and API retrieval. It omits CVSS, CWE, endpoint specifics, auth preconditions, and exploit-in-the-wild evidence.

Mitigation direction

  • Upgrade Portainer to 1.20.0 or later, following vendor release guidance.
  • Rotate LDAP bind credentials or master-password-related secrets that Portainer stored.
  • Restrict Portainer API access to trusted administrators and networks.
  • Review Portainer audit, web, and gateway logs for unusual API access.
  • Check vendor guidance for any additional remediation specific to your deployment.

Validation and detection

  • Inventory all Portainer instances and confirm their running versions.
  • Identify whether LDAP integration or stored LDAP credentials are configured.
  • Confirm upgraded instances no longer expose LDAP credentials via API behavior.
  • Verify LDAP credentials were rotated after remediation.
  • Review historical logs for suspicious credential-retrieval activity.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2018-19466 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.