PT-2023-24238 · Unknown · Lindell17 Tss Protocol

Published 2023-08-09 · Updated 2023-08-25 · CVE-2023-33242

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Crypto wallets implementing the Lindell17 TSS protocol (affected versions not specified)

Description The issue allows an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt, totaling 256 attempts, due to not adhering to the security proof's assumption regarding handling aborts after a failed signature. This is related to the implementation of the Lindell17 TSS protocol in crypto wallets.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2023-33242

Affected Products

Lindell17 Tss Protocol

References · 20

• 🔥 https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23 · Exploit
• 🔥 https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc · Exploit
• 🔥 https://github.com/d0rb/CVE-2023-33242 · Exploit
• 🔥 https://eprint.iacr.org/2017/552.pdf · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-33242 · Security Note
• https://github.com/ba0gu0/wps-rce · Note
• https://fireblocks.com/blog/lindell17-abort-vulnerability-technical-report · Note
• https://twitter.com/opsmatters_uk/status/1689767753832378369 · Twitter Post
• https://t.me/pentestingnews/38463 · Telegram Post
• https://twitter.com/the_yellow_fall/status/1689932623353692160 · Twitter Post
• https://t.me/cybersecuritytechnologies/8859 · Telegram Post
• https://twitter.com/Dinosn/status/1689939940241526786 · Twitter Post
• https://twitter.com/ksg93rd/status/1691784477301711154 · Twitter Post
• https://twitter.com/JoshMcGruff/status/1689618949300785153 · Twitter Post
• https://twitter.com/admITeu/status/1690080066548404226 · Twitter Post