Improper input validation in Cisco iOS Xe Software 16.6.1
CVE-2020-3218
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code with root privileges on the underlying Linux shell. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by first creating a malicious file on the affected device itself and then uploading a second malicious file to the device. A successful exploit could allow the attacker to execute arbitrary code with root privileges or bypass licensing requirements on the device.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.049 (91.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xe Software 16.6.1 — versions n/a
- Cisco Ios_xe — versions 16.6.1, 16.6.2, 16.6.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3218?
- CVE-2020-3218 is a high-severity vulnerability in Cisco iOS Xe Software 16.6.1, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2020-06-03.
- How severe is CVE-2020-3218?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2020-3218 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.