{"id":"GHSA-9cxh-gqpx-qc5m","summary":"Credential Disclosure in System.DirectoryServices.Protocols","details":"Microsoft is releasing this security advisory to provide information about a vulnerability in .NET. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA Information Disclosure vulnerability exists in .NET where System.DirectoryServices.Protocols.LdapConnection may send credentials in plain text on Linux.\n\n### Patches\nAny .NET application that uses `System.DirectoryServices.Protocols` with a vulnerable version listed below on system based on Linux.\n\nPackage name | Vulnerable versions | Secure versions\n------------ | ---------------- | -------------------------\nSystem.DirectoryServices.Protocols | 5.0.0  | 5.0.1\n\n### Other Details\n\n- Announcement for this issue can be found at dotnet/announcements#202\n- An Issue for this can be found at https://github.com/dotnet/runtime/issues/60301\n- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41355","aliases":["BIT-dotnet-2021-41355","BIT-dotnet-sdk-2021-41355","BIT-powershell-2021-41355","CVE-2021-41355"],"modified":"2025-09-04T19:26:59.398042Z","published":"2021-10-12T17:49:25Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2021-10-12T17:48:55Z","nvd_published_at":"2021-10-13T01:15:00Z","cwe_ids":["CWE-200"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/dotnet/runtime/security/advisories/GHSA-9cxh-gqpx-qc5m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41355"},{"type":"WEB","url":"https://github.com/dotnet/runtime/issues/60301"},{"type":"PACKAGE","url":"https://github.com/dotnet/runtime"},{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41355"},{"type":"WEB","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41355"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2022.html"}],"affected":[{"package":{"name":"System.DirectoryServices.Protocols","ecosystem":"NuGet","purl":"pkg:nuget/System.DirectoryServices.Protocols"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1"}]}],"versions":["4.5.0","4.5.0-preview1-25914-04","4.5.0-preview1-26216-02","4.5.0-preview2-26406-04","4.5.0-rc1","4.6.0","4.7.0","5.0.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/10/GHSA-9cxh-gqpx-qc5m/GHSA-9cxh-gqpx-qc5m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}