7.5
HIGH
CVE-2021-35252
Serv-U FTP Server Encryption Key Disclosure
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.

INFO

Published Date :

Dec. 16, 2022, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 6:12 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-35252 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Solarwinds serv-u
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-35252 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-35252 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252
    Added Reference https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm
    Added Reference https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 03, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 SolarWinds AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CVSS V3.1 SolarWinds AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Removed CVSS V3.1 Reason AV-Lack of information
  • Reanalysis by [email protected]

    Jul. 07, 2023

    Action Type Old Value New Value
    Removed CWE NIST CWE-798
    Added CWE NIST CWE-287
  • Initial Analysis by [email protected]

    Dec. 20, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252 No Types Assigned https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252 Third Party Advisory
    Changed Reference Type https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm No Types Assigned https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm Release Notes, Vendor Advisory
    Changed Reference Type https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252 No Types Assigned https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252 Patch, Vendor Advisory
    Added CWE NIST CWE-798
    Added CPE Configuration OR *cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:* versions up to (excluding) 15.3.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} -0.01%

score

0.36980

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
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