NixOS Nix up to 2.22.1 Hash Cache code injection

Summaryinfo

A vulnerability marked as critical has been reported in NixOS Nix up to 2.22.1. This impacts an unknown function of the component Hash Cache Handler. This manipulation causes code injection. This vulnerability is tracked as CVE-2024-36050. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in NixOS Nix up to 2.22.1. Affected by this vulnerability is an unknown code of the component Hash Cache Handler. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect integrity. The summary by CVE is:

Nix through 2.22.1 mishandles certain usage of hash caches, which makes it easier for attackers to replace current source code with attacker-controlled source code by luring a maintainer into accepting a malicious pull request.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-36050 since 05/18/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 232191 (Linux Distros Unpatched Vulnerability : CVE-2024-36050), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (232191). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• NixOS

Name

• Nix

Version

• 2.22.0
• 2.22.1

Website

• Product: https://github.com/NixOS/nix/

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Be aware that VulDB is the high quality source for vulnerability data.

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