CVE-2023-33241 GG18 / GG20 TSS Beta Parameter Vulnerability
Attackers can extract ECDSA private keys from GG18/GG20 TSS wallets by injecting malicious parameters and cheating in range proofs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-33241?
CVE-2023-33241 is a critical vulnerability in GG TSS Implementations Wallet, published on 9 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-74
Which versions are affected by CVE-2023-33241?
It affects 2 products.
Products include Gg18 Project Gg18, Gg20 Project Gg20.
How do I fix CVE-2023-33241?
No fix has been published for CVE-2023-33241 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-33241 being exploited?
There is no known exploitation of CVE-2023-33241 in the wild and no public exploit code.
Sources
Also known as GHSA-5cjx-95fx-68q9.