CVE-2016-1000109

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

HHVM does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. This issue affects HHVM versions prior to 3.9.6, all versions between 3.10.0 and 3.12.4 (inclusive), and all versions between 3.13.0 and 3.14.2 (inclusive).

HHVM no intenta abordar los conflictos de espacio de nombres de RFC 3875 section versión 4.1.18 y, por lo tanto, no protege las aplicaciones CGI de la presencia de datos de clientes no confiables en la variable de entorno HTTP_PROXY, lo que podría permitir a atacantes remotos redireccionar el tráfico HTTP saliente de una aplicación CGI hacia un servidor proxy arbitrario por medio de un encabezado Proxy diseñado en una petición HTTP, también se conoce como un problema "httpoxy". Este problema afecta a las versiones HHVM anteriores a 3.9.6, todas las versiones entre 3.10.0 y 3.12.4 (inclusive), y todas las versiones entre 3.13.0 y 3.14.2 (inclusive).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-07-18 CVE Reserved
2020-02-19 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-665: Improper Initialization

CAPEC

References (3)

URL	Tag	Source
https://www.facebook.com/security/advisories/cve-2016-1000109	Third Party Advisory

URL	Date	SRC
https://httpoxy.org	2024-08-06

URL	Date	SRC
https://github.com/facebook/hhvm/commit/423b4b719afd5ef4e6e19d8447fbf7b6bc0d0a25	2020-03-06

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				< 3.9.6 Search vendor "Facebook" for product "Hhvm" and version " < 3.9.6"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 3.10.0 <= 3.12.4 Search vendor "Facebook" for product "Hhvm" and version " >= 3.10.0 <= 3.12.4"		-		Affected
Facebook Search vendor "Facebook"		Hhvm Search vendor "Facebook" for product "Hhvm"				>= 3.13.0 <= 3.14.2 Search vendor "Facebook" for product "Hhvm" and version " >= 3.13.0 <= 3.14.2"		-		Affected