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Cisco NX-OS: Cisco NX-OS Software SSH Key Information Disclosure Vulnerability (CVE-2019-1731)

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Cisco NX-OS: Cisco NX-OS Software SSH Key Information Disclosure Vulnerability (CVE-2019-1731)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
05/15/2019
Created
05/17/2019
Added
05/16/2019
Modified
03/06/2023

Description

A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a user's private SSH key to all authenticated users on the targeted device. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to incomplete error handling if a specific error type occurs during the SSH key export. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the CLI. A successful exploit could allow the attacker to expose a user's private SSH key. In addition, a similar type of error in the SSH key import could cause the passphrase-protected private SSH key to be imported unintentionally.

Solution(s)

  • update-nxos

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