Vulnerability identifier: #VU70473

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35252

CWE-ID: CWE-321

Exploitation vector: Local network

Exploit availability: No

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

Vendor: SolarWinds

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to usage of a common encryption key across all deployed instances of Serv-U FTP Server. A remote attacker with access to the encryption key can decrypt any information stored on the servers.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Serv-U FTP Server: 15.1 - 15.3 HF 1

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External links
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252
http://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm
http://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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