CVE-2017-16654

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. The read() methods of these classes use a path and a locale to determine the language bundle to retrieve. The locale argument value is commonly retrieved from untrusted user input (like a URL parameter). An attacker can use this argument to navigate to arbitrary directories via the dot-dot-slash attack, aka Directory Traversal.

Se ha descubierto un problema en Symfony en versiones anteriores a la 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5 y 4.0-BETA5. El componente Intl incluye varios lectores bundle que se emplean para leer bundles de recursos desde el sistema de archivos local. Los métodos read() de estas clases emplean una ruta y una locale para determinar qué bundle de idioma deben recuperar. El valor del argumento locale suele recuperarse desde entradas de usuario no fiables (como un parámetro URL). Un atacante puede emplear este argumento para navegar a directorios arbitrarios mediante el ataque dot-dot-slash (punto-punto-barra), también conocido como salto de directorio.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-07 CVE Reserved
2018-08-06 CVE Published
2024-08-05 CVE Updated
2024-11-09 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 (4)

URL	Tag	Source
https://github.com/symfony/symfony/pull/24994	Issue Tracking
https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-paths	2019-03-13
https://www.debian.org/security/2018/dsa-4262	2019-03-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				>= 2.7.0 <= 2.7.37 Search vendor "Sensiolabs" for product "Symfony" and version " >= 2.7.0 <= 2.7.37"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				>= 3.2.0 <= 3.2.13 Search vendor "Sensiolabs" for product "Symfony" and version " >= 3.2.0 <= 3.2.13"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				>= 3.3.0 <= 3.3.12 Search vendor "Sensiolabs" for product "Symfony" and version " >= 3.3.0 <= 3.3.12"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				>= 3.8.0 <= 3.8.30 Search vendor "Sensiolabs" for product "Symfony" and version " >= 3.8.0 <= 3.8.30"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected