Arbitrary file upload in Simple File List - #VU27343
Published: April 27, 2020
Vulnerability identifier: #VU27343
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of files during file upload. A remote attacker can upload a file containing PHP code but with a png image file extension, then send a second request to move (rename) the png file to a php file and execute arbitrary file on the server.
Affected software
Simple File List
Remediation
Install updates from vendor's website.
Simple File List - update to 4.2.3