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CVE-2021-35252

7.5 · HIGH

Common encryption key appears to be used across all deployed instances of Serv-U FTP Server.

Published Dec 16, 2022CWE-798EPSS 0.56%

Overview

CVE-2021-35252 is a high-severity vulnerability. It was published on December 16, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252Refdocumentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htmRefwww.solarwinds.com/trust-center/security-advisories/CVE-2021-35252Refcve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252Refdocumentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htmRefwww.solarwinds.com/trust-center/security-advisories/CVE-2021-35252

How CyberStrike helps

Frequently asked questions

What is CVE-2021-35252?

CVE-2021-35252 is a high-severity vulnerability. It was published on December 16, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-35252?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-35252?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-35252?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-35252 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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