SB2018111406 - Unrestricted upload of files in .NET Core
Published: November 14, 2018
Security Bulletin ID
SB2018111406
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2018-8416)
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to write arbitrary files to the system.
The vulnerability exists due to insufficient validation of user-supplied input when processing file uploads within .NET Core. A remote attacker can upload arbitrary file to a limited number of location on the system.
Remediation
Install update from vendor's website.