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CVE-2017-7543

Published: Jul 26, 2018Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-362
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
1.8%
Top 23.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-362

Affected Products

neutronopenstack
On-premNetwork Device
Cloud & SaaS / cloud-platform
openstackredhat
On-prem
Cloud & SaaS / container-orchestration
neutronPyPIOSS Libraries
openstack-neutronRed Hat
On-prem
Operating Systems / linux-distro
openstackoss-projectUSCloud & SaaSaka openstack foundation
redhatcommercialUSOperating Systemsaka red hat
pypipackage-ecosystemOSS Libraries
red hatcommercialUSOperating Systemsaka red hat

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

http://www.securityfocus.com/bid/100237
securityfocus.com
https://access.redhat.com/errata/RHSA-2017:2447
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2448
access.redhat.com
and 10 more references View all →

Timeline

Published
Jul 26, 2018
Last Updated
Nov 21, 2024

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