// For flags

CVE-2017-9230

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. This violates the security assumptions of (1) the choice of input, outside of the dedicated nonce area, fed into the Proof-of-Work function should not change its difficulty to evaluate and (2) every Proof-of-Work function execution should be independent. NOTE: a number of persons feel that this methodology is a benign mining optimization, not a vulnerability

** EN DISPUTA ** El algoritmo de Prueba de trabajo de Bitcoin no considera una determinada metodología de ataque relacionada con encabezados de bloque de 80 bytes con una variedad de fragmentos iniciales de 64 bytes seguidos por el mismo fragmento de 16 bytes, terminando múltiples valores de raíz de candidato con los mismos 4 bytes y cálculos con números sqrt. Esto viola los supuestos de seguridad de (1) la elección de la entrada, fuera del área específica de nonce, alimentada a la función Prueba de trabajo no debería cambiar su dificultad para evaluar y (2) cada ejecución de la función Prueba de trabajo debería Se independiente. NOTA: varias personas sienten que esta metodología es una optimización minera benigna, no una vulnerabilidad.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2017-05-24 CVE Reserved
  • 2017-05-24 CVE Published
  • 2023-05-04 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Bitcoin
Search vendor "Bitcoin"
Bitcoin
Search vendor "Bitcoin" for product "Bitcoin"
--
Affected