Information disclosure in ZenGo X Gotham city



Published: 2023-08-11 | Updated: 2024-04-09
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-33242
CWE-ID CWE-310
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Gotham city
Server applications / Other server solutions

Vendor ZenGo X

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Cryptographic issues

EUVDB-ID: #VU79466

Risk: High

CVSSv3.1: 8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2023-33242

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error in Lindell17 TSS protocol implementation in crypto wallets. A remote attacker can extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total).


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gotham city: 0.1.0 - 1.0.0

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



###SIDEBAR###