CVE-2019-1963
Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 1.65 % · percentile 76 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application on an affected device to restart unexpectedly. The vulnerability is due to improper validation of Abstract Syntax Notation One (ASN.1)-encoded variables in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the SNMP daemon on the affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.7 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.0 | HIGH 7.7 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10520
- GCVE · GCVE-0-2019-1963
CERT-FR advisories
- CERTFR-2019-AVI-414 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 5.2 < 6.2\(29\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.3 < 8.4cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 13.2\(7k\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 14.0 < 14.0\(2c\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 14.1 < 14.1\(1i\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)f < 9.2\(3\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 7.1\(5\)n1\(1b\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.3 < 7.3\(5\)n1\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 6.2\(22\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.2 < 7.2\(0\)d1\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 8.0 < 8.2\(3\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 8.3 < 8.3\(2\)cpe:2.3:o:cisco:fx-os:*:*:*:*:*:*:*:*< 2.2.2.91cpe:2.3:o:cisco:fx-os:*:*:*:*:*:*:*:*≥ 2.3 < 2.3.1.130cpe:2.3:o:cisco:fx-os:*:*:*:*:*:*:*:*≥ 2.4 < 2.4.1.222cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 13.2\(7k\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 14.0 < 14.0\(2c\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 14.1 ≤ 14.1\(1i\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 5.2\(1\)sv3\(4.1a\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 5.2cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 5.2 < 5.2\(1\)sv5\(1.2\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i4 < 7.0\(3\)i4\(9\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i7 < 7.0\(3\)i7\(6\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 9.2 < 9.2\(3\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i7 < 7.0\(3\)i7\(6\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 9.2 < 9.2\(3\)
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Unified Computing System (Managed) | affected unspecified < 8.4(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 |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| 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 |