Description (CNA)
Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties' private key shares.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| GG TSS Implementations / Wallet | affected 18; affected 20 |
CWE
No CWE identifiers supplied.
References
- https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/
- https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
- https://github.com/fireblocks-labs/safeheron-gg20-exploit-poc
- https://eprint.iacr.org/2019/114.pdf
- https://eprint.iacr.org/2020/540.pdf
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.