CWE-1266 Base Incomplet

Improper Scrubbing of Sensitive Data from Decommissioned Device

This vulnerability occurs when a system lacks a reliable method for administrators to permanently erase sensitive information before taking hardware or software out of service. The data scrubbing…

Définition

What is CWE-1266?

This vulnerability occurs when a system lacks a reliable method for administrators to permanently erase sensitive information before taking hardware or software out of service. The data scrubbing feature might be missing, ineffective, or flawed, leaving confidential data behind.
When decommissioning a device or application—such as retiring a server, storage array, or IoT gadget—you must actively destroy any stored sensitive data. This process, often called data scrubbing or sanitization, is critical because simply deleting files or performing a factory reset often doesn't remove the underlying data from physical storage, making it recoverable by anyone with access to the hardware. Failure to properly scrub data exposes credentials, proprietary configurations, user information, and network details. Attackers can easily extract this information from discarded, sold, or repurposed equipment. To prevent this, you need built-in, verified secure erase functions that overwrite storage media according to recognized standards, going beyond basic deletion commands.
Impact réel

Real-world CVEs caused by CWE-1266

Aucune référence CVE publique n'est liée à ce CWE dans le catalogue MITRE pour le moment.

Comment les attaquants l'exploitent

Parcours de l'attaquant étape par étape

  1. 1

    Identifier un chemin de code qui traite des entrées non fiables sans validation.

  2. 2

    Élaborer une charge utile qui exploite le comportement non sécurisé — injection, traversal, débordement ou abus de logique.

  3. 3

    Délivrer la charge utile via une requête normale et observer la réaction de l'application.

  4. 4

    Itérer jusqu'à ce que la réponse divulgue des données, exécute le code de l'attaquant ou élève les privilèges.

Exemple de code vulnérable

Vulnerable pseudo

MITRE n'a pas publié d'exemple de code pour ce CWE. Le motif ci-dessous est illustratif — voir Ressources pour les références canoniques.

Vulnérable pseudo
// Example pattern — see MITRE for the canonical references.
function handleRequest(input) {
  // Untrusted input flows directly into the sensitive sink.
  return executeUnsafe(input);
}
Exemple de code sécurisé

Secure pseudo

Sécurisé pseudo
// Validate, sanitize, or use a safe API before reaching the sink.
function handleRequest(input) {
  const safe = validateAndEscape(input);
  return executeWithGuards(safe);
}
What changed: the unsafe sink is replaced (or the input is validated/escaped) so the same payload no longer triggers the weakness.
Liste de contrôle de prévention

How to prevent CWE-1266

  • Architecture and Design Functionality to completely scrub data from a product at the conclusion of its lifecycle should be part of the design phase. Trying to add this function on top of an existing architecture could lead to incomplete removal of sensitive information/data.
  • Policy The manufacturer should describe the location(s) where sensitive data is stored and the policies and procedures for its removal. This information may be conveyed, for example, in an Administrators Guide or a Statement of Volatility.
  • Implementation If the capability to wipe sensitive data isn't built-in, the manufacturer may need to provide a utility to scrub sensitive data from storage if that data is located in a place which is non-accessible by the administrator. One example of this could be when sensitive data is stored on an EEPROM for which there is no user/admin interface provided by the system.
Signaux de détection

How to detect CWE-1266

SAST High

Exécuter une analyse statique (SAST) sur le code source à la recherche du motif non sécurisé dans le flux de données.

DAST Moderate

Exécuter des tests de sécurité applicative dynamique (DAST) contre le point de terminaison en ligne.

Runtime Moderate

Surveiller les journaux runtime pour détecter des traces d'exception inhabituelles, des entrées malformées ou des tentatives de contournement d'autorisation.

Code review Moderate

Revue de code : signaler tout nouveau code qui traite les entrées de cette surface sans utiliser les helpers du framework validés.

CWE-1266

Don't catalog this weakness. Prove it's reachable.

Plexicus turns CWE catalogs into evidence: every CWE-pattern is matched against your real code graph, reach is proven on a sandbox clone, and verified findings ship as reviewed PRs.

Questions fréquentes

Frequently asked questions

Qu'est-ce que CWE-1266 ?

This vulnerability occurs when a system lacks a reliable method for administrators to permanently erase sensitive information before taking hardware or software out of service. The data scrubbing feature might be missing, ineffective, or flawed, leaving confidential data behind.

Quelle est la gravité de CWE-1266 ?

MITRE n'a pas publié de note de probabilité d'exploitation pour cette faiblesse. Traitez-la comme un impact moyen jusqu'à ce que votre modèle de menace prouve le contraire.

Quels langages ou plateformes sont affectés par CWE-1266 ?

MITRE lists the following affected platforms: Not OS-Specific, Not Architecture-Specific, Not Technology-Specific.

Comment puis-je prévenir CWE-1266 ?

Functionality to completely scrub data from a product at the conclusion of its lifecycle should be part of the design phase. Trying to add this function on top of an existing architecture could lead to incomplete removal of sensitive information/data. The manufacturer should describe the location(s) where sensitive data is stored and the policies and procedures for its removal. This information may be conveyed, for example, in an Administrators Guide or a Statement of Volatility.

Comment Plexicus détecte et corrige CWE-1266 ?

Le moteur SAST de Plexicus reconnaît la signature de flux de données de CWE-1266 à chaque commit. Lorsqu'une correspondance est trouvée, notre agent Codex Remedium ouvre une PR de correction avec le code corrigé, les tests et un résumé d'une ligne pour le relecteur.

Où puis-je en savoir plus sur CWE-1266 ?

MITRE publie la définition canonique à https://cwe.mitre.org/data/definitions/1266.html. Vous pouvez également consulter la documentation OWASP et NIST pour des conseils adjacents.

Faiblesses associées

Weaknesses related to CWE-1266

CWE-404 Parent

Improper Resource Shutdown or Release

This vulnerability occurs when a program fails to properly close or release a system resource—like a file handle, database connection, or…

CWE-299 Frère

Improper Check for Certificate Revocation

This vulnerability occurs when an application fails to properly verify whether a security certificate has been revoked, potentially…

CWE-401 Frère

Missing Release of Memory after Effective Lifetime

This vulnerability occurs when a program allocates memory but fails to properly release it after it's no longer needed, causing a gradual…

CWE-459 Frère

Incomplete Cleanup

This vulnerability occurs when an application fails to properly remove temporary files, data structures, or system resources after they…

CWE-761 Frère

Free of Pointer not at Start of Buffer

This vulnerability occurs when a program incorrectly frees a memory pointer that no longer points to the beginning of the allocated heap…

CWE-762 Frère

Mismatched Memory Management Routines

This vulnerability occurs when a program uses incompatible functions to allocate and free memory. For example, freeing memory with a…

CWE-763 Frère

Release of Invalid Pointer or Reference

This vulnerability occurs when a program tries to free a memory resource back to the system but uses an incorrect deallocation method or…

CWE-772 Frère

Missing Release of Resource after Effective Lifetime

This vulnerability occurs when a program fails to properly release a system resource—like memory, file handles, or network sockets—after…

CWE-775 Frère

Missing Release of File Descriptor or Handle after Effective Lifetime

This vulnerability occurs when a program fails to properly close file descriptors or handles after they are no longer needed, leaving…

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SAMPLE HANDOVER · ILLUSTRATIVE

Sample evidence handover

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VALIDATED FINDING Evidence attached

Server-Side Request Forgery in webhooks/receiver

demo-project/sample-app · src/webhooks/receiver.py:42

SeverityHigh CVSS 3.18.6 Priority79 Confirmedvia replay

Untrusted caller-supplied URLs reach an internal egress without an allowlist. Replayed in a sandbox against a fresh authorized target — the same control was validated to fail twice.

REVIEWER-READY REMEDIATION Merge-ready PR

Validate the target URL against an allowlist of permitted hostnames. Reject private/internal IP ranges. Enforce HTTPS only.

plexicus/remediation/webhooks-ssrf 3 changed · 0 new files
42resp = requests.get(target_url)
42+if not is_allowed_host(target_url):
43+  raise WebhookRejected(target_url)
44+resp = requests.get(target_url, timeout=5)
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  • Validated findings list
  • Merge-ready PRs
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