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 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://eprint.iacr.org/2019/114.pdf	Exploit Third Party Advisory
https://eprint.iacr.org/2020/540.pdf	Exploit Third Party Advisory
https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23	Exploit
https://github.com/fireblocks-labs/safeheron-gg20-exploit-poc	Exploit
https://www.fireblocks.com/blog/gg18-and-gg20-paillier-key-vulnerability-technical-report/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gg18_project:gg18:-:::::::*
	cpe:2.3:a:gg20_project:gg20:-:::::::*

History

No history.

Information

Published : 2023-08-09 22:15

Updated : 2023-08-25 16:14

NVD link : CVE-2023-33241

Mitre link : CVE-2023-33241

CVE.ORG link : CVE-2023-33241

JSON object : View

Products Affected

gg18_project

gg18

gg20_project

gg20

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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