Tracker / CVE-2019-1731
CVE-2019-1731
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.
Affected products and versions
| cisco | nx-os · … → 6.0\(2\)a8\(10\) |
|---|---|
| cisco | nx-os · … → 7.0\(3\)i4\(9\) |
| cisco | nx-os · … → 7.3\(4\)n1\(1\) |
| cisco | nx-os · 7.0\(3\) → 7.0\(3\)f3\(5\) |
| cisco | nx-os · 7.0\(3\)i4 → 7.0\(3\)i7\(4\) |
| cisco | nx-os · 7.0\(3\)i7 → 7.0\(3\)i7\(4\) |