CVE-2017-9230 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
** DISPUTED ** 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.
Source:
MITRE
View Analysis Description
Analysis 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
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
(V3.0 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
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Technical Details
Vulnerability Type
(View All)
- Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CWE-338)
Change History
4 change records found
- show changes
CVE Modified by MITRE -
6/13/2018 9:29:31 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
Record truncated, showing 500 of 656 characters.
View Entire Change Record
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- |
Record truncated, showing 500 of 671 characters.
View Entire Change Record
** DISPUTED ** 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 ( |
CVE Modified by MITRE -
6/5/2018 9:29:01 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
Record truncated, showing 500 of 549 characters.
View Entire Change Record
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- |
Record truncated, showing 500 of 656 characters.
View Entire Change Record
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- |
Initial Analysis -
6/12/2017 10:46:30 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:bitcoin:bitcoin:-:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:N/C:P/I:N/A:N) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Added |
CWE |
|
CWE-338 |
| Changed |
Reference Type |
http://www.mit.edu/~jlrubin//public/pdfs/Asicboost.pdf No Types Assigned |
http://www.mit.edu/~jlrubin//public/pdfs/Asicboost.pdf Technical Description |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/98657 No Types Assigned |
http://www.securityfocus.com/bid/98657 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://arxiv.org/ftp/arxiv/papers/1604/1604.00575.pdf No Types Assigned |
https://arxiv.org/ftp/arxiv/papers/1604/1604.00575.pdf Technical Description |
| Changed |
Reference Type |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/013996.html No Types Assigned |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/013996.html Mailing List, Technical Description, Third Party Advisory |
| Changed |
Reference Type |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014349.html No Types Assigned |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014349.html Mailing List, Third Party Advisory |
| Changed |
Reference Type |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014351.html No Types Assigned |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014351.html Mailing List, Third Party Advisory |
| Changed |
Reference Type |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014352.html No Types Assigned |
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-May/014352.html Mailing List, Third Party Advisory |
CVE Modified by MITRE -
5/26/2017 9:29:02 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/98657 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2017-9230
NVD Published Date:
05/24/2017
NVD Last Modified:
06/13/2018
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