CVE-2023-27582
criticalPriorität · verfolgen · 39EPSS 0.010 · 63. PerzentilEUUSEPSS · bewertet 2026-10-27
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.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (3)
Betroffene Produkte und Versionsbereiche.
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-4g76-w3xw-2x6wFull authentication bypass if SASL authorization username is specified2023-03-14ghsa · osvUS
### Impact maddy 0.2.0 - 0.6.2 allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. Instead of validating the specified authorization username, it is accepted as is after checking the credentials for the authentication username. ### Patches maddy 0.6.3 includes the fix for the bug. ### Workarounds There is no way to fix the issue without upgrading. ### References * Commit that introduced the vulnerable code: https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a * Fix: https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c
- GO-2023-1630Full authentication bypass if SASL authorization username is specified in github.com/foxcpp/maddy2024-08-20vendor · osvUS
Full authentication bypass if SASL authorization username is specified in github.com/foxcpp/maddy
auch bekannt als (5)
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quellen
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Referenzen (13)
Externe Belege — Patches, Meldungen, Analysen.
- https://cxsecurity.com/cveshow/CVE-2023-27582/cnnvd
- https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399acnnvd
- https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9ccnnvd
- https://github.com/foxcpp/maddy/releases/tag/v0.6.3cnnvd
- https://github.com/foxcpp/maddy/security/advisories/GHSA-4g76-w3xw-2x6wcnnvd
- https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399aenisa_euvd
- https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9cenisa_euvd
- https://github.com/foxcpp/maddy/releases/tag/v0.6.3enisa_euvd
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