CVE-2017-16667

Gentoo Linux Security Advisory 201801-06

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

backintime (aka Back in Time) before 1.1.24 did improper escaping/quoting of file paths used as arguments to the 'notify-send' command, leading to some parts of file paths being executed as shell commands within an os.system call in qt4/plugins/notifyplugin.py. This could allow an attacker to craft an unreadable file with a specific name to run arbitrary shell commands.

backintime (también conocido como Back in Time) en versiones anteriores a la 1.1.24 escapaba/entrecomillaba incorrectamente las rutas de archivo utilizadas como argumentos para el comando "notify-send", haciendo que algunas partes de las rutas de archivo se ejecutasen como comandos shell en una llamada os.system en qt4/plugins/notifyplugin.py. Esto podría permitir a un atacante manipular un archivo ilegible con un nombre específico para ejecutar comandos shell arbitrarios.

A command injection vulnerability in 'Back in Time' may allow for the execution of arbitrary shell commands. Versions less than 1.1.24 are affected.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-08 CVE Reserved
2017-11-08 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS 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')

CAPEC

References (4)

URL	Tag	Source
https://github.com/bit-team/backintime/issues/834	Third Party Advisory
https://github.com/bit-team/backintime/releases/tag/v1.1.24	Release Notes

URL	Date	SRC

URL	Date	SRC
https://github.com/bit-team/backintime/commit/cef81d0da93ff601252607df3db1a48f7f6f01b3	2019-04-30

URL	Date	SRC
https://security.gentoo.org/glsa/201801-06	2019-04-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Backintime Project Search vendor "Backintime Project"		Backintime Search vendor "Backintime Project" for product "Backintime"				< 1.1.24 Search vendor "Backintime Project" for product "Backintime" and version " < 1.1.24"		-		Affected