CVE-2021-28374
Last modified
CVE-2021-28374 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.28% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Debian | Courier-Authlib | < 0.71.1-2 |
| Debian | Debian Linux | 9.0 |
References
- https://bugs.debian.org/984810Mailing List, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00011.htmlMailing List, Third Party Advisory
- https://bugs.debian.org/984810Mailing List, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00011.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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