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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (43.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Solarwinds Serv-U
- Solarwinds Serv-U FTP Server — versions 15.3.0
Weakness classification (CWE)
References
- documentation.solarwinds.com/en/success_center/servu/content/release_notes/serv… (Release Notes, Vendor Advisory)
- cve.mitre.org/cgi-bin/cvename.cgi (Third Party Advisory)
- www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252 (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.