CVE-2021-38084: High severity Courier-mta Courier Mail Server vulnerability
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.
Affected Software
Event History
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.