Access Restriction Bypass

Affecting system.servicemodel.duplex package, versions [4.0.0, 4.0.3), [4.3, 4.3.2), [4.4, 4.4.3), [4.5 ,4.5.2)

medium severity

Overview

Affected versions of system.servicemodel.duplex are vulnerable to Access Restriction Bypass. It does not correctly validate certificates. An attacker who successfully exploited this vulnerability could present an expired certificate when challenged.

Note: If an application does not use Windows Communication Foundation you are not affected.

Remediation

Upgrade system.servicemodel.duplex to version 4.0.3, 4.3.2, 4.4.3, 4.5.2 or higher.

References

Do your applications use this vulnerable package?

Credit
Unknown
CVE
CVE-2018-8356
CWE
CWE-295
Snyk ID
SNYK-DOTNET-SYSTEMSERVICEMODELDUPLEX-60250
Disclosed
09 Jul, 2018
Published
11 Jul, 2018