CVE-2024-2408

PHP is vulnerable to the Marvin Attack

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

The openssl_private_decrypt function in PHP, when using PKCS1 padding (OPENSSL_PKCS1_PADDING, which is the default), is vulnerable to the Marvin Attack unless it is used with an OpenSSL version that includes the changes from this pull request: https://github.com/openssl/openssl/pull/13817 (rsa_pkcs1_implicit_rejection). These changes are part of OpenSSL 3.2 and have also been backported to stable versions of various Linux distributions, as well as to the PHP builds provided for Windows since the previous release. All distributors and builders should ensure that this version is used to prevent PHP from being vulnerable.

PHP Windows builds for the versions 8.1.29, 8.2.20 and 8.3.8 and above include OpenSSL patches that fix the vulnerability.

La función openssl_private_decrypt en PHP, cuando se usa el relleno PKCS1 (OPENSSL_PKCS1_PADDING, que es el valor predeterminado), es vulnerable al ataque Marvin a menos que se use con una versión de OpenSSL que incluya los cambios de esta solicitud de extracción: https://github.com/ openssl/openssl/pull/13817 (rsa_pkcs1_implicit_rejection). Estos cambios son parte de OpenSSL 3.2 y también se han adaptado a versiones estables de varias distribuciones de Linux, así como a las compilaciones de PHP proporcionadas para Windows desde la versión anterior. Todos los distribuidores y constructores deben asegurarse de que esta versión se utilice para evitar que PHP sea vulnerable. Las compilaciones PHP de Windows para las versiones 8.1.29, 8.2.20 y 8.3.8 y superiores incluyen parches OpenSSL que corrigen la vulnerabilidad.

*Credits: Hubert Kario

CVSS Scores

NISTv3.1 5.9

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2024-03-12 CVE Reserved
2024-06-09 CVE Published
2024-07-08 EPSS Updated
2024-08-01 CVE Updated
2024-08-01 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-203: Observable Discrepancy

CAPEC

References (3)

URL	Tag	Source
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK

URL	Date	SRC
https://github.com/php/php-src/security/advisories/GHSA-hh26-4ppw-5864	2024-08-01

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 8.1.0 < 8.1.29 Search vendor "Php" for product "Php" and version " >= 8.1.0 < 8.1.29"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 8.2.0 < 8.2.20 Search vendor "Php" for product "Php" and version " >= 8.2.0 < 8.2.20"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 8.3.0 < 8.3.8 Search vendor "Php" for product "Php" and version " >= 8.3.0 < 8.3.8"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				40 Search vendor "Fedoraproject" for product "Fedora" and version "40"		-		Affected