Improper access control in openstack-neutron - CVE-2021-40085

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Main Vulnerability Database Vulnerabilities #VU57242

Improper access control in openstack-neutron - CVE-2021-40085

Published: October 12, 2021


Vulnerability identifier: #VU57242
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-2021-40085
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Openstack
Affected software:
openstack-neutron

Detailed vulnerability description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and reconfigure dnsmasq via a crafted extra_dhcp_opts value.


How to mitigate CVE-2021-40085

Install updates from vendor's website.

Sources