Guest

Preview Tool

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

7.0(3)I7(2)

Description (partial)

Symptom:
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.

Conditions:
The default configuration.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.