Auth bypass in Cisco Iot Field Network Director (Iot-Fnd)
CVE-2020-3531
A vulnerability in the REST API of Cisco IoT Field Network Director (FND) could allow an unauthenticated, remote attacker to access the back-end database of an affected system. The vulnerability exists because the affected software does not properly authenticate REST API calls. An attacker could exploit this vulnerability by obtaining a cross-site request forgery (CSRF) token and then using the token with REST API requests. A successful exploit could allow the attacker to access the back-end database of the affected device and read, alter, or drop information.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-FND-BCK-… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3531?
- CVE-2020-3531 is a critical-severity vulnerability in Cisco Iot Field Network Director (Iot-Fnd), classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2020-11-18.
- How severe is CVE-2020-3531?
- Critical severity. CVSS v3 base score is 9.8 out of 10.