CVE-2019-1731
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
15/05/2019
Last modified:
09/10/2020
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.
Impact
Base Score 3.x
4.40
Severity 3.x
MEDIUM
Base Score 2.0
2.10
Severity 2.0
LOW
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 7.0\(3\)i4\(9\) (excluding) | |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 7.0\(3\)i7 (including) | 7.0\(3\)i7\(4\) (excluding) |
| cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3064-t:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_31108pc-v:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_31108tc-v:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_31128pq:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3132c-z:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3132q:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3132q-v:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3132q-xl:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* | ||
| cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page