Ubuntu.comUB:CVE-2021-43617CVE-2021-43617
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
90.9%
Laravel Framework through 8.70.2 does not sufficiently block the upload of
executable PHP content because
Illuminate/Validation/Concerns/ValidatesAttributes.php lacks a check for
.phar files, which are handled as application/x-httpd-php on systems based
on Debian. NOTE: this CVE Record is for Laravel Framework, and is unrelated
to any reports concerning incorrectly written user applications for image
upload.
References
github.com/laravel/framework/blob/2049de73aa099a113a287587df4cc522c90961f5/src/Illuminate/Validation/Concerns/ValidatesAttributes.php#L1331-L1333
hosein-vita.medium.com/laravel-8-x-image-upload-bypass-zero-day-852bd806019b
launchpad.net/bugs/cve/CVE-2021-43617
nvd.nist.gov/vuln/detail/CVE-2021-43617
salsa.debian.org/php-team/php/-/blob/dc253886b5b2e9bc8d9e36db787abb083a667fd8/debian/php-cgi.conf#L5-6
salsa.debian.org/php-team/php/-/commit/dc253886b5b2e9bc8d9e36db787abb083a667fd8
security-tracker.debian.org/tracker/CVE-2021-43617
www.cve.org/CVERecord?id=CVE-2021-43617
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
90.9%