National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-9230 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  05/24/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.mit.edu/~jlrubin//public/pdfs/Asicboost.pdf Technical Description
http://www.securityfocus.com/bid/98657 Third Party Advisory VDB Entry
https://arxiv.org/ftp/arxiv/papers/1604/1604.00575.pdf Technical Description
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/013996.html Mailing List Technical Description Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014349.html Mailing List Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014351.html Mailing List Third Party Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014352.html Mailing List Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CWE-338)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:bitcoin:bitcoin:-:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-9230
NVD Published Date:
05/24/2017
NVD Last Modified:
06/12/2017