Input validation error in Cisco Data Center Network Manager - CVE-2021-1255

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Main Vulnerability Database Vulnerabilities #VU49888

Input validation error in Cisco Data Center Network Manager - CVE-2021-1255

Published: January 20, 2021 / Updated: January 21, 2021


Vulnerability identifier: #VU49888
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-1255
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Data Center Network Manager

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security controls on the system.

The vulnerability exists due to an incorrect comparison in a denylist implementation. A remote authenticated attacker can send specially crafted network traffic and modify server configuration settings on the affected device.


How to mitigate CVE-2021-1255

Install updates from vendor's website.

Sources