CVE-2024-42350 - CERT CVE
ID CVE-2024-42350
Sažetak Biscuit is an authorization token with decentralized verification, offline attenuation and strong security policy enforcement based on a logic language. Third-party blocks can be generated without transferring the whole token to the third-party authority. Instead, a `ThirdPartyBlock` request can be sent, providing only the necessary info to generate a third-party block and to sign it: 1. the public key of the previous block (used in the signature), 2. the public keys part of the token symbol table (for public key interning in datalog expressions). A third-part block request forged by a malicious user can trick the third-party authority into generating datalog trusting the wrong keypair. Tokens with third-party blocks containing `trusted` annotations generated through a third party block request. This has been addressed in version 4 of the specification. Users are advised to update their implementations to conform. There are no known workarounds for this vulnerability.
Reference
CVSS
Base: 3.0
Impact: 1.4
Exploitability:1.3
Pristup
VektorSloženostAutentikacija
NETWORK HIGH HIGH
Impact
PovjerljivostCjelovitostDostupnost
NONE LOW NONE
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N
Zadnje važnije ažuriranje 06-08-2024 - 16:30
Objavljeno 05-08-2024 - 20:15