#VU50667 Input validation error in Serv-U FTP Server - CVE-2020-15543

Vulnerability identifier: #VU50667

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15543

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Serv-U FTP Server
Server applications / File servers (FTP/HTTP)

Vendor: SolarWinds

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of user-supplied input when processing command arguments. A remote authenticated user can bypass implemented security restrictions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Serv-U FTP Server: 15.1 - 15.2

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External links
https://documentation.solarwinds.com/en/success_center/servu/Content/Release_Notes/Servu_15-2-1_release_notes.htm

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.