CVE-2024-45593

Nix affected by unsafe NAR unpacking

Severity Score

9.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

Nix is a package manager for Linux and other Unix systems. A bug in Nix 2.24 prior to 2.24.6 allows a substituter or malicious user to craft a NAR that, when unpacked by Nix, causes Nix to write to arbitrary file system locations to which the Nix process has access. This will be with root permissions when using the Nix daemon. This issue is fixed in Nix 2.24.6.

Linus Heckemann discovered that Nix did not correctly handle certain binaries. An attacker could possibly use this issue to execute arbitrary code. Pierre-Etienne Meunier discovered that Nix did not correctly handle TLS certificates. A remote attacker could possibly use this issue to leak sensitive information. It was discovered that Nix did not correctly handle Unix sockets. An attacker could possibly use this issue execute arbitrary code. This issue only affected Ubuntu 24.04 LTS.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2024-09-02 CVE Reserved
2024-09-10 CVE Published
2024-09-10 CVE Updated
2025-07-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (2)

URL	Tag	Source
https://github.com/NixOS/nix/commit/eb11c1499876cd4c9c188cbda5b1003b36ce2e59	X_refsource_misc
https://github.com/NixOS/nix/security/advisories/GHSA-h4vv-h3jq-v493	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.24.0 < 2.24.6 Search vendor "NixOS" for product "Nix" and version " >= 2.24.0 < 2.24.6"		en		Affected