CVE-2019-7167
Zcash Zk-SNARK Counterfeiting Vulnerability
Description
Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.
INFO
Published Date :
March 27, 2019, 2:29 a.m.
Last Modified :
Nov. 21, 2024, 4:47 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2019-7167 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-7167.
| URL | Resource |
|---|---|
| http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/ | Press/Media Coverage Third Party Advisory |
| https://github.com/JinBean/CVE-Extension | |
| https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/ | Vendor Advisory |
| http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/ | Press/Media Coverage Third Party Advisory |
| https://github.com/JinBean/CVE-Extension | |
| https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This repository is an extension of our research on cryptocurrency clones and documents existing vulnerabilities discovered in those clones
cve-2018-17144 cve-2019-7176 cve-2016-10724 cve-2016-10725
C++
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-7167 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-7167 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-20 CWE-754 -
CVE Modified by [email protected]
Jun. 11, 2019
Action Type Old Value New Value Added Reference https://github.com/JinBean/CVE-Extension [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 08, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/ No Types Assigned http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/ Press/Media Coverage, Third Party Advisory Changed Reference Type https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/ No Types Assigned https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/ Vendor Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:* versions up to (including) 2.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-7167 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-7167
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.23 }} 0.06%
score
0.60510
percentile