CVE-2023-33241

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.

CVSS v3.1

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1

9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

EPSS

1.18% chance of exploitation in the next 30 days, 66th percentile

Published

2023-08-09

Updated

2024-10-10

Proof-of-concept exploits (1)

• fireblocks-labs/safeheron-gg20-exploit-poc13★ · 2023-08-06

References

• CVE Record
• NVD entry

Related

• CVE-2023-33242
• CVE-2023-3320
• CVE-2023-33197
• CVE-2023-33243
• CVE-2023-33196
• CVE-2023-33246