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.
Published 2015-06-02 14:59:12
Updated 2016-12-31 02:59:32
Source MITRE
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2015-4050

Exploit prediction scoring system (EPSS) score for CVE-2015-4050

0.60%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-4050

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
NIST

CWE ids for CVE-2015-4050

  • The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2015-4050

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