CVE-2021-39160

Code injection in nbgitpuller

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

nbgitpuller is a Jupyter server extension to sync a git repository one-way to a local path. Due to unsanitized input, visiting maliciously crafted links could result in arbitrary code execution in the user environment. This has been resolved in version 0.10.2 and all users are advised to upgrade. No work around exist for users who can not upgrade.

nbgitpuller es una extensión del servidor Jupyter para sincronizar un repositorio git de forma unidireccional a una ruta local. Debido a una entrada no saneada, visitar enlaces maliciosamente diseñados podría resultar en una ejecución de código arbitrario en el entorno del usuario. Esto ha sido resuelto en la versión 0.10.2 y se recomienda a todos los usuarios que actualicen. No se presenta ninguna solución para usuarios que no puedan actualizar.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-16 CVE Reserved
2021-08-25 CVE Published
2024-07-31 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-94: Improper Control of Generation of Code ('Code Injection')

CAPEC

References (3)

URL	Tag	Source
https://github.com/jupyterhub/nbgitpuller/blob/main/CHANGELOG.md#0102---2021-08-25	Release Notes
https://github.com/jupyterhub/nbgitpuller/security/advisories/GHSA-mq5p-2mcr-m52j	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/jupyterhub/nbgitpuller/commit/07690644f29a566011dd0d7ba14cae3eb0490481	2022-10-25

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Jupyterhub Search vendor "Jupyterhub"		Nbgitpuller Search vendor "Jupyterhub" for product "Nbgitpuller"				>= 0.9.0 < 0.10.2 Search vendor "Jupyterhub" for product "Nbgitpuller" and version " >= 0.9.0 < 0.10.2"		-		Affected