CVE-2026-33697
HighSummary
Cocos AI to system zaufanego obliczania dla AI, który ma podatność na atak relay w implementacji attested TLS (aTLS) w wersjach od v0.4.0 do v0.8.2. Atakujący może wyciągnąć ephemeryczny klucz prywatny TLS używany podczas atestacji, co pozwala na przejęcie sesji TLS.
Risk Assessment
Podatność ta może prowadzić do fałszywej autoryzacji, umożliwiając atakującemu podszywanie się pod usługi CoCoS i dostęp do danych lub operacji, co stanowi poważne zagrożenie dla bezpieczeństwa organizacji.
Recommendation
Zaleca się aktualizację systemu CoCoS do najnowszej wersji, aby usunąć tę podatność oraz wdrożenie dodatkowych środków zabezpieczających, aby zminimalizować ryzyko ataków relay.
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Original NVD description (English source)
Cocos AI is a confidential computing system for AI. The current implementation of attested TLS (aTLS) in CoCoS is vulnerable to a relay attack affecting all versions from v0.4.0 through v0.8.2. This vulnerability is present in both the AMD SEV-SNP and Intel TDX deployment targets supported by CoCoS. In the affected design, an attacker may be able to extract the ephemeral TLS private key used during the intra-handshake attestation. Because the attestation evidence is bound to the ephemeral key but not to the TLS channel, possession of that key is sufficient to relay or divert the attested TLS session. A client will accept the connection under false assumptions about the endpoint it is communicating with — the attestation report cannot distinguish the genuine attested service from the attacker's relay. This undermines the intended authentication guarantees of attested TLS. A successful attack may allow an attacker to impersonate an attested CoCoS service and access data or operations tha
Vulnerability data from NVD (NIST) · CISA KEV · EPSS