CVE-2021-1361

Cisco NX-OS Software Unauthenticated Arbitrary File Actions Vulnerability

Description

A vulnerability in the implementation of an internal file management service for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode that are running Cisco NX-OS Software could allow an unauthenticated, remote attacker to create, delete, or overwrite arbitrary files with root privileges on the device. This vulnerability exists because TCP port 9075 is incorrectly configured to listen and respond to external connection requests. An attacker could exploit this vulnerability by sending crafted TCP packets to an IP address that is configured on a local interface on TCP port 9075. A successful exploit could allow the attacker to create, delete, or overwrite arbitrary files, including sensitive files that are related to the device configuration. For example, the attacker could add a user account without the device administrator knowing.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory cisco.com
Affected: Cisco Cisco NX-OS Software
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-1361?
CVE-2021-1361 has been scored as a critical severity vulnerability.
How to fix CVE-2021-1361?
To fix CVE-2021-1361, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-1361 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1361 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1361?
CVE-2021-1361 affects Cisco Cisco NX-OS Software.
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