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.

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).

EPSS: 0.013 (66.6th percentile) — read the EPSS interpretation.

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.

Affected products

Debian Courier-authlib
Debian Debian_linux — versions 9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

cve@mitre.org (Mailing List, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (mailing-list, x_refsource_MLIST, 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.