Command injection in Cisco StarOS
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
A vulnerability in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series Aggregation Services Routers could allow an authenticated, local attacker to perform a command injection attack on an affected system. The vulnerability is due to insufficient validation of commands that are supplied to certain configurations in the CLI of the affected operating system. An attacker could exploit this vulnerability by injecting crafted arguments into a vulnerable CLI command for an affected system. A successful exploit could allow the attacker to insert and execute arbitrary commands in the CLI of the affected system. To exploit this vulnerability, the attacker would need to authenticate to an affected system by using valid administrator credentials. Cisco Bug IDs: CSCvg29441.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco StarOS | Cisco StarOS | — | No fix listed | CNA |
- Cisco StarOS Vendor— Affected Cisco StarOS Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:asr_5000_firmware:21.3.0.67664:*:*:*:*:*:*:* | 21.3.0.67664 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:asr_5000_firmware:21.7.0:*:*:*:*:*:*:* | 21.7.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asr_5700_firmware:21.3.0.67664:*:*:*:*:*:*:* | 21.3.0.67664 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:asr_5700_firmware:21.7.0:*:*:*:*:*:*:* | 21.7.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:asr_5500_firmware:21.3.0.67664:*:*:*:*:*:*:* | 21.3.0.67664 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:asr_5500_firmware:21.7.0:*:*:*:*:*:*:* | 21.7.0 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:asr_5000_firmware:21.3.0.67664:*:*:*:*:*:*:* Versions 21.3.0.67664 Vulnerable ·Cisco
- cpe:2.3:o:cisco:asr_5000_firmware:21.7.0:*:*:*:*:*:*:* Versions 21.7.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asr_5700_firmware:21.3.0.67664:*:*:*:*:*:*:* Versions 21.3.0.67664 Vulnerable ·Cisco
- cpe:2.3:o:cisco:asr_5700_firmware:21.7.0:*:*:*:*:*:*:* Versions 21.7.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:asr_5500_firmware:21.3.0.67664:*:*:*:*:*:*:* Versions 21.3.0.67664 Vulnerable ·Cisco
- cpe:2.3:o:cisco:asr_5500_firmware:21.7.0:*:*:*:*:*:*:* Versions 21.7.0 Vulnerable ·Cisco
- cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0217
- 2026-10-03 Alias added: GHSA-v48w-7v4g-xgfj
References
More Cisco Asr 5000 Firmware vulnerabilities
- TI-2018-00092 Improper input validation in Cisco Virtualized Packet Core-Distributed Instance CVSS 3.0HIGH 8.6
Sources
- CVE-2018-0217 · CVE Program
- CVE-2018-0217 · NVD
- FIRST EPSS
- GHSA-v48w-7v4g-xgfj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences