CVE-2024-38531

Nix sandbox escape

Severity Score

3.6

*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 that makes package management reliable and reproducible. A build process has access to and can change the permissions of the build directory. After creating a setuid binary in a globally accessible location, a malicious local user can assume the permissions of a Nix daemon worker and hijack all future builds. This issue was patched in version(s) 2.23.1, 2.22.2, 2.21.3, 2.20.7, 2.19.5 and 2.18.4.

Nix es un administrador de paquetes para Linux y otros sistemas Unix que hace que la administración de paquetes sea confiable y reproducible. Un proceso de compilación tiene acceso y puede cambiar los permisos del directorio de compilación. Después de crear un binario setuid en una ubicación accesible globalmente, un usuario local malicioso puede asumir los permisos de un daemon trabajador de Nix y secuestrar todas las compilaciones futuras. Este problema se solucionó en las versiones 2.23.1, 2.22.2, 2.21.3, 2.20.7, 2.19.5 y 2.18.4.

*Credits: N/A

CVSS Scores

GitHubv3.1 3.6

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-06-18 CVE Reserved
2024-06-28 CVE Published
2024-06-29 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-278: Insecure Preserved Inherited Permissions

CAPEC

References (2)

URL	Tag	Source
https://github.com/NixOS/nix/pull/10501	X_refsource_misc
https://github.com/NixOS/nix/security/advisories/GHSA-q82p-44mg-mgh5	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"				>= 2.23.0 < 2.23.1 Search vendor "NixOS" for product "Nix" and version " >= 2.23.0 < 2.23.1"		en		Affected
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.22.0 < 2.22.2 Search vendor "NixOS" for product "Nix" and version " >= 2.22.0 < 2.22.2"		en		Affected
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.21.0 < 2.21.3 Search vendor "NixOS" for product "Nix" and version " >= 2.21.0 < 2.21.3"		en		Affected
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.20.0 < 2.20.7 Search vendor "NixOS" for product "Nix" and version " >= 2.20.0 < 2.20.7"		en		Affected
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.19.0 < 2.19.5 Search vendor "NixOS" for product "Nix" and version " >= 2.19.0 < 2.19.5"		en		Affected
NixOS Search vendor "NixOS"		Nix Search vendor "NixOS" for product "Nix"				>= 2.18.0 < 2.18.4 Search vendor "NixOS" for product "Nix" and version " >= 2.18.0 < 2.18.4"		en		Affected