Cisco StarOS Privilege Escalation Vulnerability (Cisco Cisco ASR 5000 Series Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.39 % · percentile 33 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the CLI of Cisco StarOS operating system for Cisco ASR 5000 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. The vulnerability is due to insufficient input validation of CLI commands. An attacker could exploit this vulnerability by sending crafted commands to the CLI. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the root user on the affected device. To exploit this vulnerability, an attacker would need to have valid credentials on an affected device and know the password for the cli test-commands command.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.3 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.3 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-24873
- GCVE · GCVE-0-2020-3602
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*< 21.19.n4
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco ASR 5000 Series Software | affected n/a |
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 |