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GHSA-9cxh-gqpx-qc5m

MediumCVSS 5.7 / 10
Published Oct 12, 2021·Last modified Sep 4, 2025
Affected Components(0)

No affected components available

Description

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
Risk Scores
Base Score
5.7

The vulnerability can be exploited over a local network, such as Wi-Fi. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
5.2

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
20.34%

The exploit probability is moderate. The vulnerability is likely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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