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CVE Record

CVE-2018-9162: Contec Smart Home 4.15 devices do not require authentication for new_user.php, edit_user.php, delete_user.p...

Contec Smart Home 4.15 devices do not require authentication for new_user.php, edit_user.php, delete_user.php, and user.php, as demonstrated by changing the admin password and then obtaining control over doors.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw affects Contec Smart Home 4.15 devices, where user-management pages can be reached without login. The CVE says an attacker could change the admin password and gain control over doors. That creates business risk around unauthorized physical access, especially if the device web interface is exposed beyond a trusted management network.

Executive priority

Treat as high priority where the system controls physical access or is remotely reachable. The key decision is containment first, then vendor-confirmed remediation or replacement because the sources do not name a patch.

Technical view

The reported issue is missing authentication on new_user.php, edit_user.php, delete_user.php, and user.php. The source bundle does not provide CVSS, CWE, CPE, patch, or vendor mitigation details. Exploit-DB is listed as a public exploit reference, but the bundle does not show CISA KEV listing or confirmed active exploitation.

Likely exposure

Likely exposure is limited to Contec Smart Home 4.15 devices with reachable web management interfaces. The affected-product metadata is sparse, so teams should validate by product name, firmware/application version, and deployed access-control role rather than relying on CPE matching.

Exploitation context

A public Exploit-DB reference exists, so defenders should assume technique details are publicly available. The provided sources do not prove active exploitation, and KEV is false. Risk rises sharply where the device is internet-facing or reachable from untrusted internal networks.

Researcher notes

Evidence is thin but direct: the CVE text names unauthenticated user-management endpoints and door-control impact. Avoid overstating scope beyond Contec Smart Home 4.15. No CVSS, CWE, CPE, patch details, or active exploitation confirmation are present in the supplied bundle.

Mitigation direction

  • Check Contec or integrator guidance for an official fix or replacement path.
  • Remove internet exposure from affected device management interfaces.
  • Restrict access to trusted admin networks or VPN-only paths.
  • Rotate administrator credentials after containment and remediation.
  • Review door-control and user-management activity for unauthorized changes.

Validation and detection

  • Inventory Contec Smart Home 4.15 deployments and confirm exact versions.
  • Identify whether management interfaces are reachable from untrusted networks.
  • Safely verify listed user-management pages require authentication.
  • Review configured users for unexpected accounts or privilege changes.
  • Check access-control logs for unexplained door events or admin changes.
Prepared
Confidence
medium
Sources
3

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-9162 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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
2Source 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.