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Security Advisories: GSA_kwCzR0hTQS05Y3hoLWdxcHgtcWM1bc0WiA

Credential Disclosure in System.DirectoryServices.Protocols

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.

A Information Disclosure vulnerability exists in .NET where System.DirectoryServices.Protocols.LdapConnection may send credentials in plain text on Linux.

Patches

Any .NET application that uses System.DirectoryServices.Protocols with a vulnerable version listed below on system based on Linux.

Package name	Vulnerable versions	Secure versions
System.DirectoryServices.Protocols	5.0.0	5.0.1

Other Details

• Announcement for this issue can be found at dotnet/announcements#202
• An Issue for this can be found at https://github.com/dotnet/runtime/issues/60301
• MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41355

Permalink: https://github.com/advisories/GHSA-9cxh-gqpx-qc5m
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS05Y3hoLWdxcHgtcWM1bc0WiA
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 5.7
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Identifiers: GHSA-9cxh-gqpx-qc5m, CVE-2021-41355
References:

• https://github.com/dotnet/runtime/security/advisories/GHSA-9cxh-gqpx-qc5m
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-41355
• https://github.com/dotnet/runtime/issues/60301
• https://nvd.nist.gov/vuln/detail/CVE-2021-41355
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41355
• https://www.oracle.com/security-alerts/cpujan2022.html
• https://github.com/advisories/GHSA-9cxh-gqpx-qc5m

Repository: https://github.com/dotnet/runtime
Blast Radius: 1.0

Affected Packages