CVE-2019-16753
This is a weak signature scheme design that would allow the reuse of signatures in some cases (or even the reuse of signatures, intended for one type of message, for another type).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Decentralized Anonymous Payment System (DAPS) through 2019-08-26. The content to be signed is composed of a representation of strings, rather than being composed of their binary representations. This is a weak signature scheme design that would allow the reuse of signatures in some cases (or even the reuse of signatures, intended for one type of message, for another type). This also affects Private Instant Verified Transactions (PIVX) through 3.4.0.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- decentralized anonymous payment system project/decentralized anonymous payment system · pivx/private instant verified transactions
- Source
- cve@mitre.org
References
- https://officialdapscoin.com/wp-content/uploads/2019/09/DAPS-Coin-Final-Security-Audit-Red4Sec-2019.pdfExploit, Third Party Advisory
- https://officialdapscoin.com/wp-content/uploads/2019/09/DAPS-Coin-Final-Security-Audit-Red4Sec-2019.pdfExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.