Auth bypass in Foxcpp Maddy
CVE-2023-27582
maddy is a composable, all-in-one mail server. Starting with version 0.2.0 and prior to version 0.6.3, maddy allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. In…
Vulnerability class: Broken Authentication
EPSS: 0.006 (69.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Foxcpp Maddy — versions >= 0.2.0 0.6.3
Weakness classification (CWE)
References
- https://github.com/foxcpp/maddy/security/advisories/GHSA-4g76-w3xw-2x6w (x_refsource_CONFIRM)
- https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a (x_refsource_MISC)
- https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c (x_refsource_MISC)
- https://github.com/foxcpp/maddy/releases/tag/v0.6.3 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-27582?
- CVE-2023-27582 is a critical-severity vulnerability in Foxcpp Maddy, classified under Improper Authentication. CVSS score: 9.1/10. Published 2023-03-13.
- How severe is CVE-2023-27582?
- Critical severity. CVSS v3 base score is 9.1 out of 10.