CVE-2017-16790

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Summary

CVECVE-2017-16790
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-08-06 21:29:00 UTC
Updated2018-10-11 16:11:00 UTC
DescriptionAn issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. When a form is submitted by the user, the request handler classes of the Form component merge POST data and uploaded files data into one array. This big array forms the data that are then bound to the form. At this stage there is no difference anymore between submitted POST data and uploaded files. A user can send a crafted HTTP request where the value of a "FileType" is sent as normal POST data that could be interpreted as a local file path on the server-side (for example, "file:///etc/passwd"). If the application did not perform any additional checks about the value submitted to the "FileType", the contents of the given file on the server could have been exposed to the attacker.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Sensiolabs Symfony All All All All
Application Sensiolabs Symfony All All All All
Application Sensiolabs Symfony All All All All
Application Sensiolabs Symfony All All All All

References

ReferenceSourceLinkTags
CVE-2017-16790: Ensure that submitted data are uploaded files (Symfony Blog) CONFIRM symfony.com Issue Tracking, Patch, Vendor Advisory
Debian -- Security Information -- DSA-4262-1 symfony DEBIAN www.debian.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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