High severity · published Dec 16, 2022
CVE-2021-35252
Common encryption key appears to be used across all deployed instances of Serv-U FTP Server
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Serv-U · SolarWinds
before 15.3.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35252
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35252
Third Party Advisory
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252
Release Notes
https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm
Patch
https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252
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