RCE in Cisco Asr 5000
CVE-2018-0217
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Asr_5000
- Cisco Asr_5000_firmware — versions 21.3.0.67664, 21.7.0
- Cisco Asr_5500
- Cisco Asr_5500_firmware — versions 21.3.0.67664, 21.7.0
- Cisco Asr_5700
- Cisco Asr_5700_firmware — versions 21.3.0.67664, 21.7.0
- N/a Cisco Staros — versions Cisco StarOS
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2018-0217?
- CVE-2018-0217 is a medium-severity vulnerability in Cisco Asr 5000, classified under Command Injection. CVSS score: 6.7/10. Published 2018-03-08.
- How severe is CVE-2018-0217?
- Medium severity. CVSS v3 base score is 6.7 out of 10.