CVE-2016-1902

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails	Vendor Advisory
http://www.debian.org/security/2016/dsa-3588
https://github.com/symfony/symfony/pull/17359	Patch
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails	Vendor Advisory
http://www.debian.org/security/2016/dsa-3588
https://github.com/symfony/symfony/pull/17359	Patch
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/

Configurations

Configuration 1 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:sensiolabs:symfony::::::::
	cpe:2.3:a:sensiolabs:symfony:2.6.0:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.1:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.2:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.3:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.4:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.5:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.6:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.7:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.8:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.9:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.10:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.11:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.6.12:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.0:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.1:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.2:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.3:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.4:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.5:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.6:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.7:::::::*
	cpe:2.3:a:sensiolabs:symfony:2.7.8:::::::*

History

21 Nov 2024, 02:47

Type	Values Removed	Values Added
References	~~() http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails - Vendor Advisory~~	() http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails - Vendor Advisory
References	~~() http://www.debian.org/security/2016/dsa-3588 -~~	() http://www.debian.org/security/2016/dsa-3588 -
References	~~() https://github.com/symfony/symfony/pull/17359 - Patch~~	() https://github.com/symfony/symfony/pull/17359 - Patch
References	~~() https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/ -~~	() https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/ -

Information

Published : 2016-06-01 22:59

Updated : 2024-11-21 02:47

NVD link : CVE-2016-1902

Mitre link : CVE-2016-1902

CVE.ORG link : CVE-2016-1902

JSON object : View

Products Affected

sensiolabs

symfony

debian

debian_linux

CWE

CWE-310

Cryptographic Issues

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"confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2016-06-01T22:59:01.393", "references": [{"url": "http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2016/dsa-3588", "source": "cve@mitre.org"}, {"url": "https://github.com/symfony/symfony/pull/17359", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/", "source": "cve@mitre.org"}, {"url": "http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2016/dsa-3588", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/symfony/symfony/pull/17359", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-310"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "La funci\u00f3n 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 n\u00fameros aleatorios cuando es usado con PHP 5.x sin la biblioteca paragonie/random_compat y falla la funci\u00f3n openssl_random_pseudo_bytes, lo que hace m\u00e1s f\u00e1cil a los atacantes vencer los mecanismos de protecci\u00f3n de cifrado a trav\u00e9s de vectores no especificados."}], "lastModified": "2024-11-21T02:47:18.353", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "87FE6482-55B8-4311-A67B-97C12626B3BF", "versionEndIncluding": "2.3.36"}, {"criteria": "cpe:2.3:a:sensiolabs:symfony:2.6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F13A190-1F97-4D7B-826A-E976934AE82B"}, {"criteria": "cpe:2.3:a:sensiolabs:symfony:2.6.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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"cve@mitre.org"}

7.5 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

JSON object

Attach tags to CVE-2016-1902

7.5^/10

5.0^/10

Attach tags to `CVE-2016-1902`