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Cisco Bug: CSCvu29657 - N1kv 4.1b: Remove support for diffie-hellman-group1-sha1 and TLSv1.0 in Nexus1000v

Last Modified

Jul 13, 2020

Products (1)

  • Cisco Nexus 1000V Switch for VMware vSphere

Known Affected Releases

5.2(1)SV3(4.1b)

Description (partial)

Symptom:
This is a modification on the Cisco Nexus 1000V Series Switches to adopt new secure code best practices to enhance the security posture and resiliency of  the product. The web server should be secure by default. Known broken/risky/weak cryptographic and hashing algorithms should not be used.

This defect will track two security issues where:

* The key-exchange algorithm diffie-hellman-group1-sha1 needs to be removed or made configuration.

* The TLSv1.0 should be removed.

Conditions:
Device configured with default configuration.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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