Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability (Cisco Cisco NX-OS Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
Weaknesses (CWE)
- CWE-347 — Improper Verification of Cryptographic Signature
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.7 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 6.7 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | LOW 2.1 | AV:L/AC:L/Au:N/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10365
- GCVE · GCVE-0-2019-1808
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.3 < 8.1\(1a\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 8.2 < 8.3\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.2 < 7.3\(3\)d1\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 8.0 < 8.2\(3\)
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 |