CVE-2023-33242 - Vulnerability Details - OpenCVE

Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.04635.

Exploitation poc

Automatable no

Technical Impact total

Vendors	Products
Lindell17 Project	Lindell17

Configuration 1 [-]

cpe:2.3:a:lindell17_project:lindell17:-:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-37411	Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://eprint.iacr.org/2017/552.pdf
https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc
https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/

History

Thu, 10 Oct 2024 13:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Halborn

Published: 2023-08-09T21:01:37.417Z

Updated: 2024-10-10T12:47:35.497Z

Reserved: 2023-05-19T15:51:23.095Z

Link: CVE-2023-33242

Vulnrichment

Updated: 2024-08-02T15:39:35.953Z

NVD

Status : Modified

Published: 2023-08-09T22:15:11.180

Modified: 2024-11-21T08:05:13.993

Link: CVE-2023-33242

Redhat

No data.

OpenCVE Enrichment

No data.

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