CVE-2016-1902

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The nextBytes function in the SecureRandom class in Symfony before 2.3.37, 2.6.x before 2.6.13, and 2.7.x before 2.7.9 does not properly generate random numbers when used with PHP 5.x without the paragonie/random_compat library and the openssl_random_pseudo_bytes function fails, which makes it easier for attackers to defeat cryptographic protection mechanisms via unspecified vectors.

La función nextBytes en la clase SecureRandom en Symfony en versiones anteriores a 2.3.37, 2.6.x en versiones anteriores a 2.6.13 y 2.7.x en versiones anteriores a 2.7.9 no genera correctamente números aleatorios cuando es usado con PHP 5.x sin la biblioteca paragonie/random_compat y falla la función openssl_random_pseudo_bytes, lo que hace más fácil a los atacantes vencer los mecanismos de protección de cifrado a través de vectores no especificados.

*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

2016-01-14 CVE Reserved
2016-05-30 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-310: Cryptographic Issues

CAPEC

References (4)

URL	Tag	Source
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://github.com/symfony/symfony/pull/17359	2016-06-03

URL	Date	SRC
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails	2016-06-03
http://www.debian.org/security/2016/dsa-3588	2016-06-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				<= 2.3.36 Search vendor "Sensiolabs" for product "Symfony" and version " <= 2.3.36"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.0 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.0"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.1 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.1"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.2 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.2"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.3 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.3"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.4 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.4"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.5 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.5"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.6 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.6"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.7 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.7"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.8 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.8"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.9 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.9"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.10 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.10"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.11 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.11"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.6.12 Search vendor "Sensiolabs" for product "Symfony" and version "2.6.12"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.0 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.0"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.1 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.1"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.2 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.2"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.3 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.3"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.4 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.4"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.5 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.5"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.6 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.6"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.7 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.7"		-		Affected
Sensiolabs Search vendor "Sensiolabs"		Symfony Search vendor "Sensiolabs" for product "Symfony"				2.7.8 Search vendor "Sensiolabs" for product "Symfony" and version "2.7.8"		-		Affected