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Cisco Bug: CSCvh75964 - Cisco NX-OS Virtual Shell Buffer Overflow Vulnerability

Last Modified

Mar 28, 2019

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

A vulnerability in a specific CLI command implementation for Cisco NX-OS Software could allow an authenticated, local attacker to cause a Virtual Shell (VSH) session to unexpectedly disconnect. 

The vulnerability is due to incorrect length checks of user supplied input for a specific CLI command. An attacker could exploit this vulnerability by authenticating to 
the device and issuing a crafted CLI command. An exploit could allow the attacker to cause a VSH session of another use to unexpectedly disconnect. A VSH session is used for local and remote connections to the management interface of the device. The attacker would need valid administrator credentials.

The default configuration.
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Bug Details Include

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