Cisco NX-OS Software Remote Package Manager Command Injection 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 Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to leverage a time-of-check, time-of-use (TOCTOU) race condition to corrupt local variables, which could lead to arbitrary command injection. The vulnerability is due to the lack of a proper locking mechanism on critical variables that need to stay static until used. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a set of RPM-related CLI commands. A successful exploit could allow the attacker to perform arbitrary command injection. The attacker would need administrator credentials for the targeted device.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
- CWE-667 — Improper Locking
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.4 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.4 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 6.4 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | MEDIUM 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10289
- GCVE · GCVE-0-2019-1732
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i4 < 7.0\(3\)i7\(4\)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 |