biscuit-auth biscuit-rust prior 5.0.0 privileges management

Summaryinfo

A vulnerability classified as critical was found in biscuit-auth biscuit-rust. This issue affects some unknown processing. The manipulation results in privileges management. This vulnerability is known as CVE-2024-41949. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in biscuit-auth biscuit-rust. Affected is an unknown function. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

biscuit-rust is the Rust implementation of Biscuit, an authentication and authorization token for microservices architectures. 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, which includes the public key of the previous block (used in the signature) and 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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-41949 since 07/24/2024. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 5.0.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• biscuit-auth

Name

• biscuit-rust

Website

• Product: https://github.com/biscuit-auth/biscuit-rust/

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