#VU24698 Arbitrary file upload in Super File Explorer - CVE-2020-7998

Vulnerability identifier: #VU24698

Vulnerability risk: High

CVSSv4.0: 8.9 [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/E:P/U:Amber]

CVE-ID: CVE-2020-7998

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Super File Explorer
Mobile applications / Apps for mobile phones

Vendor: chen lili

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file extension when uploading files in the developer path that is accessible and hidden next to the root path. A remote attacker can upload and execute arbitrary file on the system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

Super File Explorer: 1.0.1

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External links
https://apps.apple.com/us/app/super-file-explorer-file-viewer-file-manager/id1101973946
https://gist.github.com/adeshkolte/9e60b2483d2f20d1951beac0fc917c6f

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.