Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2015-4050

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
02/06/2015
Last modified:
12/04/2025

Description

FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28, 2.4.9 through 2.4.10, 2.5.4 through 2.5.11, and 2.6.0 through 2.6.7, when ESI or SSI support enabled, does not check if the _controller attribute is set, which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:sensiolabs:symfony:2.3.19:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.20:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.21:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.22:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.23:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.24:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.25:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.26:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.27:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.3.28:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.4.9:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.4.10:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.5.4:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.5.5:*:*:*:*:*:*:*
cpe:2.3:a:sensiolabs:symfony:2.5.6:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools