CVEvulnerability

CVE-2023-27582

9.8 CRITICAL Published 2023-03-13 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-03-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-287, CWE-305

Description

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. Instead of validating the specified username, it is accepted as is after checking the credentials for the authentication username. maddy 0.6.3 includes the fix for the bug. There are no known workarounds.

Affected configurations

• maddy project maddy (>= 0.2.0 < 0.6.3)

Related

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-305 Authentication Bypass by Primary Weakness weakness

References