HIGH

CVE-2021-1531

CVSS v3

8.8

HIGH

EPSS Score

14.1%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

A vulnerability in the web UI of Cisco Modeling Labs could allow an authenticated, remote attacker to execute arbitrary commands with the privileges of the web application on the underlying operating system of an affected Cisco Modeling Labs server. This vulnerability is due to insufficient validation of user-supplied input to the web UI. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected server. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the web application, virl2, on the underlying operating system of the affected server. To exploit this vulnerability, the attacker must have valid user credentials on the web UI.

Technical details

Published
5/22/2021

Frequently asked questions

What is CVE-2021-1531?

A vulnerability in the web UI of Cisco Modeling Labs could allow an authenticated, remote attacker to execute arbitrary commands with the privileges of the web application on the underlying operating system of an affected Cisco Modeling Labs server. This vulnerability is due to insufficient validation of user-supplied input to the web UI. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected server. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the web application, virl2, on the underlying operating system of the affected server. To exploit this vulnerability, the attacker must have valid user credentials on the web UI.

Is CVE-2021-1531 actively exploited?

Active exploitation of CVE-2021-1531 has not been confirmed. The EPSS score is 14.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-1531?

CVE-2021-1531 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-1531 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.