CVE-2023-33242
9.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Lindell TSS Implementations | Wallet | 17 | affected |
Weaknesses
- Private Key Exfiltration
ADP Enrichment
CVE Program Container
Additional References
- https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/
- https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
- https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc
- https://eprint.iacr.org/2017/552.pdf
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
References
- https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/
- https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
- https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc
- https://eprint.iacr.org/2017/552.pdf
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