Improper input validation in Cisco Nx-Os Software 7.3(2)d1(1d)

CVE-2020-3170

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the Cisco NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.017 (75.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-3170?
CVE-2020-3170 is a medium-severity vulnerability in Cisco Nx-Os Software 7.3(2)d1(1d), classified under Improper Input Validation. CVSS score: 5.3/10. Published 2020-02-26.
How severe is CVE-2020-3170?
Medium severity. CVSS v3 base score is 5.3 out of 10.