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[email protected]CVE-2017-7543

HistoryJul 26, 2018 - 2:29 p.m.

CVE-2017-7543

2018-07-2614:29:00

CWE-362

[email protected]

web.nvd.nist.gov

openstack

neutron

security vulnerability

race condition

cve-2017-7543

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

5.4 Medium

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

70.4%

JSON

A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.

Affected configurations

Vulners

NVD

Node

redhatopenstackRange≤10.0.2

redhatopenstackRange≤8.3.0

redhatopenstackRange≤9.3.1

redhatopenstackRange≤7.2.0

VendorProductVersionCPE
redhatopenstack*cpe:2.3:a:redhat:openstack:*:*:*:*:*:*:*:*
redhatopenstack*cpe:2.3:a:redhat:openstack:*:*:*:*:*:*:*:*
redhatopenstack*cpe:2.3:a:redhat:openstack:*:*:*:*:*:*:*:*
redhatopenstack*cpe:2.3:a:redhat:openstack:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	openstack	*	cpe:2.3:a:redhat:openstack::::::::
redhat	openstack	*	cpe:2.3:a:redhat:openstack::::::::
redhat	openstack	*	cpe:2.3:a:redhat:openstack::::::::
redhat	openstack	*	cpe:2.3:a:redhat:openstack::::::::

CNA Affected

[
  {
    "product": "openstack-neutron",
    "vendor": "Red Hat",
    "versions": [
      {
        "status": "affected",
        "version": "openstack-neutron-10.0.2-1.1"
      },
      {
        "status": "affected",
        "version": "openstack-neutron-8.3.0-11.1"
      },
      {
        "status": "affected",
        "version": "openstack-neutron-9.3.1-2.1"
      },
      {
        "status": "affected",
        "version": "openstack-neutron-7.2.0-12.1"
      }
    ]
  }
]