Vulnerability in Debian Courier-Authlib
CVE-2021-28374
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (68.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
- Debian Courier-Authlib
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- bugs.debian.org/984810 (Mailing List, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2021/04/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28374?
- CVE-2021-28374 is a high-severity vulnerability in Debian Courier-Authlib, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.5/10. Published 2021-03-15.
- How severe is CVE-2021-28374?
- High severity. CVSS v3 base score is 7.5 out of 10.