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CVE-2024-45049

Date: August 27, 2024

Hydra is a Continuous Integration service for Nix based projects. It is possible to trigger evaluations in Hydra without any authentication. Depending on the size of evaluations, this can impact the availability of systems. The problem can be fixed by applying https://github.com/NixOS/hydra/commit/f73043378907c2c7e44f633ad764c8bdd1c947d5 to any Hydra package. Users are advised to upgrade. Users unable to upgrade should deny the "/api/push" route in a reverse proxy. This also breaks the "Evaluate jobset" button in the frontend.

Language: Perl

Severity Score

Related Resources (6)

https://mastodon.delroth.net/@delroth/113029832631860419
https://github.com/NixOS/hydra/security/advisories/GHSA-xv29-v93r-2f5v
https://github.com/NixOS/nixpkgs/pull/337766
https://github.com/NixOS/hydra/commit/f73043378907c2c7e44f633ad764c8bdd1c947d5
https://nvd.nist.gov/vuln/detail/CVE-2024-45049
https://www.mend.io/vulnerability-database/CVE-2024-45049

Severity Score

Weakness Type (CWE)

Missing Authentication for Critical Function

CWE-306

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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