CVE-2024-42350

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-42350
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42350.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-42350
Aliases
Published
2024-08-05T19:47:44Z
Modified
2025-10-21T02:35:28Z
Severity
  • 3.0 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N CVSS Calculator
Summary
Public key confusion in third party block in Biscuit
Details

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.

References

Affected packages

Git /

Affected ranges

Database specific

unresolved_versions

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "4"
            }
        ],
        "type": ""
    }
]