CVE-2017-7543
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
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.
Overview
- CVE ID
- CVE-2017-7543
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-07-26T14:29:00
- Last Modified Date
- 2023-02-12T23:30:50
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.2.0-12.1 |
| cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* | 1 | OR | 8.0.0 | 8.3.0-11.1 |
| cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0 | 9.3.1-2.1 |
| cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* | 1 | OR | 10.0.0 | 10.0.2-1.1 |
| AND | ||||
| cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://www.securityfocus.com/bid/100237 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:2447 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2448 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2449 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2450 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2451 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2452 | Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2017-7543 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1473792 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543 | Mitigation Issue Tracking Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-7543 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7543 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:58:26 | Added to TrackCVE | |||
| 2022-12-03 10:31:33 | 2018-07-26T14:29Z | 2018-07-26T14:29:00 | CVE Published Date | updated |
| 2022-12-03 10:31:33 | 2021-08-04T17:15:35 | CVE Modified Date | updated | |
| 2022-12-03 10:31:33 | Modified | Vulnerability Status | updated | |
| 2023-02-02 22:08:33 | 2023-02-02T21:17:52 | CVE Modified Date | updated | |
| 2023-02-02 22:08:33 | 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. | A race-condition flaw was discovered in openstack-neutron 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. | Description | updated |
| 2023-02-02 22:08:35 | References | updated | ||
| 2023-02-13 01:08:16 | 2023-02-12T23:30:50 | CVE Modified Date | updated | |
| 2023-02-13 01:08:16 | A race-condition flaw was discovered in openstack-neutron 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. | 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. | Description | updated |