8.1
CWE
74
Advisory Published
Updated

CVE-2021-38084

First published: Tue Aug 03 2021(Updated: )

An issue was discovered in the POP3 component of Courier Mail Server before 1.1.5. Meddler-in-the-middle attackers can pipeline commands after the POP3 STLS command, injecting plaintext commands into an encrypted user session.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Courier Mail Server<1.1.5

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Frequently Asked Questions

  • What is the severity of CVE-2021-38084?

    CVE-2021-38084 is classified as a high severity vulnerability due to its potential for exploiting encrypted sessions.

  • How do I fix CVE-2021-38084?

    The recommended fix for CVE-2021-38084 is to upgrade to Courier Mail Server version 1.1.5 or later.

  • What impact does CVE-2021-38084 have on users?

    CVE-2021-38084 allows attackers to inject plaintext commands into an encrypted user session, compromising data confidentiality.

  • What types of attacks are possible with CVE-2021-38084?

    CVE-2021-38084 enables meddler-in-the-middle attacks that can manipulate user sessions in real-time.

  • Is CVE-2021-38084 exploitable remotely?

    Yes, CVE-2021-38084 can be exploited remotely by attackers who can intercept the POP3 communications.

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