Main Vulnerability Database Vulnerabilities #VU70473

Use of Hard-coded Cryptographic Key in Serv-U FTP Server - CVE-2021-35252

Published: December 21, 2022

Vulnerability identifier: #VU70473

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-35252

CWE-ID: CWE-321

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerability details

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.

Affected software

Serv-U FTP Server

How to mitigate CVE-2021-35252

Install updates from vendor's website.

Serv-U FTP Server - update to 15.3.2

External References

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

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