CVE-2021-28374 Information disclosure in n/a
Weak permissions on the authdaemon directory allow attackers to read sensitive user information, including potential cleartext passwords.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-28374?
CVE-2021-28374 is a high-severity vulnerability in Debian Debian Linux, published on 15 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information. This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash).
Weakness: CWE-732
Which versions are affected by CVE-2021-28374?
It affects 2 products.
Products include Debian Courier-Authlib, Debian Debian Linux.
How do I fix CVE-2021-28374?
Upgrade to a fixed version.
Is CVE-2021-28374 being exploited?
There is no known exploitation of CVE-2021-28374 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-28374, DLA-2625-1, GHSA-hcm8-3cv3-g73f, UBUNTU-CVE-2021-28374.