Cisco NX-OS Software SSH Key Information Disclosure Vulnerability (Cisco Cisco NX-OS Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.36 % · percentile 29 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor
- CWE-755 — Improper Handling of Exceptional Conditions
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.1 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N | cisco |
| CVSS 3.1 | MEDIUM 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 5.1 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | LOW 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10288
- GCVE · GCVE-0-2019-1731
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 7.0\(3\)i4\(9\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i7 < 7.0\(3\)i7\(4\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 6.0\(2\)a8\(10\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i4 < 7.0\(3\)i7\(4\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 7.3\(4\)n1\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\) < 7.0\(3\)f3\(5\)
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco NX-OS Software | affected unspecified < 8.3(1) |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |