#VU17401 Privilege escalation in Serv-U FTP Server - CVE-2018-15906

Vulnerability identifier: #VU17401

Vulnerability risk: High

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Amber]

CVE-ID: CVE-2018-15906

CWE-ID: CWE-264

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 authenticated attacker to escalate privileges on the system.

The vulnerability exists due to improper privileges and access controls. A remote attacker who is a member of the "Domain Administrators" can leverage the CSV user import function and execute arbitrary code under the context of the Windows SYSTEM account in a default installation.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
The vulnerability has been addressed in the version 15.1.6 Hotfix 2.

Vulnerable software versions

Serv-U FTP Server: 15.1.6

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External links
https://seclists.org/fulldisclosure/2019/Feb/4

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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. However, proof of concept for this vulnerability is available.