What is CVE-2021-35252?

CVE-2021-35252 is a high-severity vulnerability in Solarwinds Serv-u, classified under Use of Hard-coded Credentials. CVSS score: 7.5/10. Published 2022-12-16.

How severe is CVE-2021-35252?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Solarwinds Serv-u

CVE-2021-35252

Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.

EPSS: 0.005 (41.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Solarwinds Serv-u
Solarwinds Serv-u Ftp Server — versions 15.3.0

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials
CWE-287 — Improper Authentication

References

psirt@solarwinds.com (Release Notes, Vendor Advisory)
psirt@solarwinds.com (Third Party Advisory)
psirt@solarwinds.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-35252?: CVE-2021-35252 is a high-severity vulnerability in Solarwinds Serv-u, classified under Use of Hard-coded Credentials. CVSS score: 7.5/10. Published 2022-12-16.
How severe is CVE-2021-35252?: High severity. CVSS v3 base score is 7.5 out of 10.