CVE-2021-3378

Description

FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a "Content-Type: image/png" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

FortiLogger Arbitrary File Upload Exploit
exploit/windows/http/fortilogger_arbitrary_fileupload

Exploit-DB 1

FortiLogger 4.4.2.2 - Unauthenticated Arbitrary File Upload (Metasploit) EDB-49600 · webapps · Mar 1, 2021 · verified

GitHub 1 repository

erberkan/fortilogger_arbitrary_fileupload ★ 23 · Jan 30, 2021

CVE-2021-3378 | FortiLogger - Unauthenticated Arbitrary File Upload (Metasploit)

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

FortiLogger 4.4.2.2 - Arbitrary File Upload http/cves/2021/CVE-2021-3378.yaml

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a "Content-Type: image/png" header to Config/SaveUploadedHotspotLogoFil…