CVE-2019-1731

Description

A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a users 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 users 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.

Risk Information

Base Score

4.4

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS Score

Exploitation Probability

0.179

Associated Vulnerability

Vulnerability	OS Platform
Cisco NX-OS Software SSH Key Information Disclosure Vulnerability For Cisco NX-OS Software	NCM
Improper Handling of Exceptional Conditions Vulnerability (CVE-2019-1731)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1706149	Security Update for Cisco NX-OS Software 4.1(3a)UCSM

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234