CVE-2021-38084 Security feature bypass in n/a
Attackers can inject plaintext commands into encrypted POP3 sessions via STLS, bypassing encryption and potentially reading data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-38084?
CVE-2021-38084 is a high-severity vulnerability in n/a, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-74
Which versions are affected by CVE-2021-38084?
It affects 1 product.
Products include Courier-Mta Courier Mail Server.
How do I fix CVE-2021-38084?
Upgrade to a fixed version.
Is CVE-2021-38084 being exploited?
There is no known exploitation of CVE-2021-38084 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-38084, GHSA-m7r5-gh9x-xg9m, UBUNTU-CVE-2021-38084.