CVE-2021-28374
First published: Mon Mar 15 2021(Updated: )
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).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian Courier-authlib | <0.71.1-2 | |
| Debian Linux | =9.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-28374?
CVE-2021-28374 has a medium severity level due to its potential to expose sensitive user information.
How do I fix CVE-2021-28374?
To fix CVE-2021-28374, upgrade the Debian courier-authlib package to version 0.71.1-2 or later.
What systems are affected by CVE-2021-28374?
CVE-2021-28374 affects Debian systems running courier-authlib versions earlier than 0.71.1-2.
What type of information can be exposed in CVE-2021-28374?
CVE-2021-28374 can expose user information, including potential cleartext passwords in certain configurations.
Is CVE-2021-28374 a local or remote vulnerability?
CVE-2021-28374 is primarily a local vulnerability, as it exploits directory permissions on the affected system.
- agent/type
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/debian
- canonical/debian courier-authlib
- canonical/debian linux
- version/debian linux/9.0