Appropriate Post-Si tests should be carried out to ensure that residual confidential information is not left on parts leaving one facility for another facility.
Unprotected Confidential Information on Device is Accessible by OSAT Vendors
This vulnerability occurs when a semiconductor chip does not properly secure sensitive data, making it accessible to third-party Outsourced Semiconductor Assembly and Test (OSAT) vendors during the…
What is CWE-1297?
Real-world CVEs caused by CWE-1297
Todavía no hay CVEs públicos enlazados a esta CWE en el catálogo de MITRE.
Ruta del atacante paso a paso
- 1
The following example shows how an attacker can take advantage of a piece of confidential information that has not been protected from the OSAT.
- 2
Suppose the preproduction device contains NVM (a storage medium that by definition/design can retain its data without power), and this NVM contains a key that can unlock all the parts for that generation. An OSAT facility accidentally leaks the key.
- 3
Compromising a key that can unlock all the parts of a generation can be devastating to a chipmaker.
- 4
The likelihood of such a compromise can be reduced by ensuring all memories on the preproduction device are properly scrubbed.
Vulnerable pseudo
MITRE no ha publicado un ejemplo de código para esta CWE. El patrón siguiente es ilustrativo — consulta Recursos para referencias canónicas.
// Example pattern — see MITRE for the canonical references.
function handleRequest(input) {
// Untrusted input flows directly into the sensitive sink.
return executeUnsafe(input);
} Secure pseudo
// Validate, sanitize, or use a safe API before reaching the sink.
function handleRequest(input) {
const safe = validateAndEscape(input);
return executeWithGuards(safe);
} How to prevent CWE-1297
- Architecture and Design - Ensure that when an OSAT vendor is allowed to access test interfaces necessary for preproduction and returned parts, the vendor only pulls the minimal information necessary. Also, architect the product in such a way that, when an "unlock device" request comes, it only unlocks that specific part and not all the parts for that product line. - Ensure that the product's non-volatile memory (NVM) is scrubbed of all confidential information and secrets before handing it over to an OSAT. - Arrange to secure all communication between an OSAT facility and the chipmaker.
How to detect CWE-1297
Appropriate Post-Si tests should be carried out to ensure that residual confidential information is not left on parts leaving one facility for another facility.
Plexicus detecta automáticamente CWE-1297 y abre un PR de corrección en menos de 60 segundos.
Codex Remedium escanea cada commit, identifica esta debilidad concreta y entrega un pull request listo para revisión con el parche. Sin tickets. Sin traspasos.
Frequently asked questions
¿Qué es CWE-1297?
This vulnerability occurs when a semiconductor chip does not properly secure sensitive data, making it accessible to third-party Outsourced Semiconductor Assembly and Test (OSAT) vendors during the manufacturing process.
¿Qué gravedad tiene CWE-1297?
MITRE no ha publicado una calificación de probabilidad de explotación para esta debilidad. Trátala como de impacto medio hasta que tu modelo de amenazas demuestre lo contrario.
¿Qué lenguajes o plataformas se ven afectados por CWE-1297?
MITRE lists the following affected platforms: Verilog, VHDL, Not OS-Specific, Not Architecture-Specific, Processor Hardware, Not Technology-Specific.
¿Cómo puedo prevenir CWE-1297?
- Ensure that when an OSAT vendor is allowed to access test interfaces necessary for preproduction and returned parts, the vendor only pulls the minimal information necessary. Also, architect the product in such a way that, when an "unlock device" request comes, it only unlocks that specific part and not all the parts for that product line. - Ensure that the product's non-volatile memory (NVM) is scrubbed of all confidential information and secrets before handing it over to an OSAT. - Arrange…
¿Cómo detecta y corrige Plexicus CWE-1297?
El motor SAST de Plexicus detecta la firma de flujo de datos para CWE-1297 en cada commit. Cuando hay coincidencia, nuestro agente Codex Remedium abre un PR de corrección con el código corregido, las pruebas y un resumen de una línea para el revisor.
¿Dónde puedo aprender más sobre CWE-1297?
MITRE publica la definición canónica en https://cwe.mitre.org/data/definitions/1297.html. También puedes consultar la documentación de OWASP y NIST para guías relacionadas.
Weaknesses related to CWE-1297
Improper Authorization
This vulnerability occurs when an application fails to properly verify whether a user has permission to access specific data or perform…
Exposure of Sensitive Information Through Metadata
This vulnerability occurs when an application protects the primary source of sensitive data but fails to secure the metadata derived from…
Improper Restriction of Software Interfaces to Hardware Features
This vulnerability occurs when a system's software interfaces to hardware features—like power, clock, or performance management—are not…
Security Version Number Mutable to Older Versions
This vulnerability occurs when a hardware system's security version number can be changed, allowing an attacker to downgrade or roll back…
Files or Directories Accessible to External Parties
This vulnerability occurs when an application exposes files or directories to users who shouldn't have access to them.
Incorrect Permission Assignment for Critical Resource
This vulnerability occurs when a system grants overly permissive access to a sensitive resource, allowing unauthorized users or processes…
Missing Authorization
This vulnerability occurs when an application fails to verify whether a user has permission to access specific data or execute certain…
Incorrect Authorization
This vulnerability occurs when an application checks if a user is allowed to perform an action or access data, but the check is flawed or…
Improper Export of Android Application Components
This vulnerability occurs when an Android app makes a component (like an Activity, Service, or Content Provider) available to other apps…
Further reading
- MITRE — CWE-1297 oficial https://cwe.mitre.org/data/definitions/1297.html
- Provably-Secure Logic Locking: From Theory To Practice https://dl.acm.org/doi/10.1145/3133956.3133985
- Trustworthy Hardware Design: Combinational Logic Locking Techniques https://link.springer.com/book/10.1007/978-3-030-15334-2
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